European Journal of Inorganic Chemistry

Cover image for Vol. 2014 Issue 24

Special Issue: Molecular Conductors (Cluster Issue)

August 2014

Volume 2014, Issue 24

Pages 3780–4038

Issue edited by: Lahcène Ouahab, Takehiko Mori

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Enantiopure Conducting Salts of Dimethylbis(ethylenedithio)tetrathiafulvalene (DM-BEDT-TTF) with the Hexachlororhenate(IV) Anion (Eur. J. Inorg. Chem. 24/2014)

      Flavia Pop, Magali Allain, Pascale Auban-Senzier, José Martínez-Lillo, Francesc Lloret, Miguel Julve, Enric Canadell and Narcis Avarvari

      Article first published online: 21 AUG 2014 | DOI: 10.1002/ejic.201490120

      Thumbnail image of graphical abstract

      The cover picture shows the mirror-image relationship, like that between the two hands in the background, between two enantiopure dimethylbis(ethylenedithio)tetrathiafulvalene (DM-BEDT-TTF) precursors. Also shown are the solid-state packing diagrams, represented in an artistic manner, of the mixed-valence radical cation salts of these precursors with the hexachlororhenate(IV) dianion. These paramagnetic semiconducting chiral materials have been obtained by electrocrystallization, and their transport properties were determined by single-crystal resistivity measurements, supported by band-structure calculations. The organic/inorganic segregation shown in the picture is an important prerequisite for extensive electron delocalization, although charge localization occurs here in the donors. Details are discussed in the article by N. Avarvari et al. on p. 3855 ff. For more on the story behind the cover research, see the Cover Profile.

  2. Inside Front Cover

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Transistor Application of Phenacene Molecules and Their Characteristics (Eur. J. Inorg. Chem. 24/2014)

      Yoshihiro Kubozono, Xuexia He, Shino Hamao, Kazuya Teranishi, Hidenori Goto, Ritsuko Eguchi, Takashi Kambe, Shin Gohda and Yasushi Nishihara

      Article first published online: 21 AUG 2014 | DOI: 10.1002/ejic.201490121

      Thumbnail image of graphical abstract

      The inside cover picture shows a representation of the phenacene field-effect transistor (FET). A thin film or a single crystal of the phenacene molecule is an active layer of the FET. SiO2 can be utilized as a gate dielectric, which becomes a gate capacitor in the FET. The gate voltage can be applied through the heavily doped Si substrate. In this case, the FET device can be recognized as a “top-contact/bottom-gate” structure. Furthermore, an ionic liquid such as bmim[PF6] forms the electric double layer (EDL) with a thickness of 1 nm, which becomes an effective capacitor in the FET, i. e. low-voltage operation is observed in the EDL FET. The gate voltage is applied through the gate electrode immersed in the ionic liquid. This device can be recognized as a “top-contact/top-gate” structure. A single crystal of the phenacene molecule is shown in the background. Details are presented in the Microreview by Y. Kubozono et al. on p. 3806 ff.

  3. Back Cover

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Pressure-Induced Metallic Conductivity in the Single-Component Molecular Crystal [Ni(dmit)2] (Eur. J. Inorg. Chem. 24/2014)

      Hengbo Cui, Takao Tsumuraya, Tsuyoshi Miyazaki, Yoshinori Okano and Reizo Kato

      Article first published online: 21 AUG 2014 | DOI: 10.1002/ejic.201490122

      Thumbnail image of graphical abstract

      The back cover picture shows a diamond anvil cell and a mounted sample in the cell, which is the setup used for measuring the electrical conductivity of a small single-component molecular crystal of a metal–dithiolene complex, [Ni(dmit)2], under very high pressure (up to 25.8 GPa). The pressure is comparable to the lower mantle pressure (more than 600 km deep in the earth). This very high pressure changes the insulating crystal to a metal with a three-dimensional Fermi surface. Details are discussed in the Short Communication by H. Cui, R. Kato et al. on p. 3837 ff.

  4. Cover Profile

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Enantiopure Conducting Salts of Dimethylbis(ethylenedithio)tetrathiafulvalene (DM-BEDT-TTF) with the Hexachlororhenate(IV) Anion (page 3780)

      Flavia Pop, Magali Allain, Pascale Auban-Senzier, José Martínez-Lillo, Francesc Lloret, Miguel Julve, Enric Canadell and Narcis Avarvari

      Article first published online: 21 AUG 2014 | DOI: 10.1002/ejic.201402695

      Thumbnail image of graphical abstract

      We have recently obtained one of the most important results in the field, with the first observation of the eMChA effect in chiral bulk molecular conductors...

      Read more about the story behind the cover in the Cover Profile and about the research itself on p. 3855 ff.

  5. Editorial

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Molecular Conductors

      Showing Good Conduct (pages 3781–3782)

      Preeti Vashi

      Article first published online: 21 AUG 2014 | DOI: 10.1002/ejic.201402719

      Thumbnail image of graphical abstract

      The highly topical field of Molecular Conductors is the subject of this cluster issue of EurJIC. Guest Editors Lahcène Ouahab and Takehiko Mori offer a collection of papers reflecting some of the latest stimulating developments in this field from leading researchers, especially from the viewpoint of inorganic chemistry. The Essay by Professor Gunzi Saito introduces the reader into the world of multifunctional conducting molecular materials.

  6. Guest Editorial

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Molecular Conductors

      Molecular Conductors (pages 3783–3784)

      Lahcène Ouahab and Takehiko Mori

      Article first published online: 21 AUG 2014 | DOI: 10.1002/ejic.201402630

      Thumbnail image of graphical abstract

      An overview of the papers in this cluster issue is presented. “We are delighted to present this Cluster Issue on “Molecular Conductors.” This research field dates back to the discovery of an organic charge-transfer complex by Akamatsu, Inokuchi, and Matsunaga in 1954, followed by the discovery of an organic superconductor by Jérome and Bechgaard in 1970...”

  7. Essay

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Multifunctional Molecular Conductors

      Multifunctional Molecular Conductors (pages 3785–3788)

      Gunzi Saito

      Article first published online: 21 AUG 2014 | DOI: 10.1002/ejic.201402628

      Thumbnail image of graphical abstract

      The study of molecular conductors is a rapidly developing field of research that lies between organic, inorganic, and physical chemistry on the one hand and solid-state and theoretical physics on the other and involves everything from fundamental science to applied science and technology. In this essay, multifunctional conducting molecular materials are introduced.

  8. Graphical Abstract

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Graphical Abstract: Eur. J. Inorg. Chem. 24/2014 (pages 3790–3799)

      Article first published online: 21 AUG 2014 | DOI: 10.1002/ejic.201490116

  9. News

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
  10. Masthead

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Masthead: Eur. J. Inorg. Chem. 24/2014 (page 3804)

      Article first published online: 21 AUG 2014 | DOI: 10.1002/ejic.201490118

  11. Further Masthead

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Masthead: Eur. J. Inorg. Chem. 24/2014 (page 3805)

      Article first published online: 21 AUG 2014 | DOI: 10.1002/ejic.201490119

  12. Microreviews

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Phenacene Field-Effect Transistors

      Transistor Application of Phenacene Molecules and Their Characteristics (pages 3806–3819)

      Yoshihiro Kubozono, Xuexia He, Shino Hamao, Kazuya Teranishi, Hidenori Goto, Ritsuko Eguchi, Takashi Kambe, Shin Gohda and Yasushi Nishihara

      Article first published online: 22 JUL 2014 | DOI: 10.1002/ejic.201402168

      Thumbnail image of graphical abstract

      Field-effect transistors (FETs) can be fabricated with thin films and single crystals of phenacene. The excellent p-channel FET characteristics that have been found by our group are fully reported in this review.

    2. Organic Conductors

      Dual-Layered Quasi-Two-Dimensional Organic Conductors with Presumable Incoherent Electron Transport (pages 3820–3836)

      Rimma Lyubovskaya, Elena Zhilyaeva, Gena Shilov, Alain Audouard, David Vignolles, Enric Canadell, Sergei Pesotskii and Rustem Lyubovskii

      Article first published online: 28 APR 2014 | DOI: 10.1002/ejic.201402041

      Thumbnail image of graphical abstract

      The main peculiarities of dual-layered conductors (D)4MBr4(C6H6–nXn) are their alternating different conducting layers, structural phase transitions, and different types of conductivity, metallic along and semiconducting across the conducting layers. The Fermi surface of this compound provides a roadmap for interpreting the transport properties of quasi-two-dimensional organic conductors.

  13. Short Communications

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Molecular Metals

      Pressure-Induced Metallic Conductivity in the Single-Component Molecular Crystal [Ni(dmit)2] (pages 3837–3840)

      Hengbo Cui, Takao Tsumuraya, Tsuyoshi Miyazaki, Yoshinori Okano and Reizo Kato

      Article first published online: 6 MAR 2014 | DOI: 10.1002/ejic.201400130

      Thumbnail image of graphical abstract

      Four-probe electrical resistivity measurements on the single-component molecular crystal [Ni(dmit)2] (dmit = 1,3-dithiole-2-thione-4,5-dithiolate) up to 25.5 GPa by using a diamond anvil cell (DAC) technique with high-quality hydrostatic conditions reveal a metallic state above 15.9 GPa. Ab initio DFT calculations and tight-binding band calculations indicate a 3D Fermi surface under high pressure, which explains the metallic state.

    2. Field-Effect Transistors

      Asymmetric Phase Transitions Observed at the Interface of a Field-Effect Transistor Based on an Organic Mott Insulator (pages 3841–3844)

      Hiroshi M. Yamamoto, Yoshitaka Kawasugi, Hengbo Cui, Masaki Nakano, Yoshihiro Iwasa and Reizo Kato

      Article first published online: 6 MAY 2014 | DOI: 10.1002/ejic.201402025

      Thumbnail image of graphical abstract

      An ambipolar field-effect transistor is fabricated with an organic Mott insulator as a channel material. It shows Mott transitions both in the n-type and p-type regions, which merge at lower temperatures. These transitions are asymmetric at the polarity inversion, and they show a difference between hole doping and electron doping into an organic Mott insulator.

    3. Strain Effects

      Uniaxial Strain Effect of the Moderately Dimerized Molecular Conductor β-(meso-DMBEDT-TTF)2PF6 (pages 3845–3849)

      Yohei Nishida, Takayuki Isono, Akira Ueda and Hatsumi Mori

      Article first published online: 4 JUL 2014 | DOI: 10.1002/ejic.201402463

      Thumbnail image of graphical abstract

      Band calculations and resistivity measurements under uniaxial strain are performed for the moderately dimerized molecular conductor β-(meso-DMBEDT-TTF)2PF6 [DMBEDT-TTF = dimethylbis(ethylenedithio)tetrathiafulvalene]. Under uniaxial strain along the c and (ab) axes, intersite electronic correlations contribute and superconducting (SC) behavior is observed, which indicates that the SC state is deeply related to the charge-ordered state.

    4. Isotope Effect of Thermopower

      Isotope Effect of Thermopower in the TTFCOONH3Ph Single Crystal (pages 3850–3854)

      Yuka Kobayashi, Satoshi Sumi, Takeshi Terauchi, Hideo Iwai, Akihiro Tanaka, Yoshitaka Matsushita and Akira Sato

      Article first published online: 16 MAY 2014 | DOI: 10.1002/ejic.201402055

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      A large isotope effect of thermopower has been found for semiconducting TTFCOONH3Ph and its deuteriated form, TTFCOOND3Ph. The origin of the isotope effect has been investigated based on chemical and physical characterizations using high-quality single crystals.

  14. Full Papers

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Cover Profile
    6. Editorial
    7. Guest Editorial
    8. Essay
    9. Graphical Abstract
    10. News
    11. Masthead
    12. Further Masthead
    13. Microreviews
    14. Short Communications
    15. Full Papers
    1. Molecular Conductors

      Enantiopure Conducting Salts of Dimethylbis(ethylenedithio)tetrathiafulvalene (DM-BEDT-TTF) with the Hexachlororhenate(IV) Anion (pages 3855–3862)

      Flavia Pop, Magali Allain, Pascale Auban-Senzier, José Martínez-Lillo, Francesc Lloret, Miguel Julve, Enric Canadell and Narcis Avarvari

      Article first published online: 14 APR 2014 | DOI: 10.1002/ejic.201400125

      Thumbnail image of graphical abstract

      Two enantiomerically pure radical cation salts based on the (S,S)- and (R,R)-dimethylbis(ethylenedithio)tetrathiafulvalene (DM-BEDT-TTF) donor and the paramagnetic [ReCl6]2– dianion show semiconducting behaviour.

    2. Iron Phthalocyanines

      Layered Salts with Iron Hexadecachlorophthalocyanine Anions – The Formation of [{FeCl16Pc}2]3– Dimers Containing [FeICl16Pc(2–)] and Diamagnetic [Fe0Cl16Pc(2–)]2– (pages 3863–3870)

      Dmitri V. Konarev, Alexey V. Kuzmin, Manabu Ishikawa, Yoshiaki Nakano, Maxim A. Faraonov, Salavat S. Khasanov, Akihiro Otsuka, Hideki Yamochi, Gunzi Saito and Rimma N. Lyubovskaya

      Article first published online: 7 MAY 2014 | DOI: 10.1002/ejic.201400126

      Thumbnail image of graphical abstract

      Two salts with iron hexadecachlorophthalocyanine anions were obtained. (PPN+)[(FeICl16Pc)]·Solvent (1) has a layered structure with π–π stacking columns. (TBA+)3[(FeCl16Pc)23–] (2) contains (FeCl16Pc)23– dimers with a {FeICl16Pc(2–)} monoanion and a {Fe0Cl16Pc(2–)}2– dianion connected through a Fe–Fe bond. There is no noticeable charge transfer from the iron atoms to the phthalocyanine macrocycles in 2.

    3. Isotropic 3D π-Conductors

      Isotropic Three-Dimensional Molecular Conductor Based on the Coronene Radical Cation (pages 3871–3878)

      Yukihiro Yoshida, Mitsuhiko Maesato, Yoshihide Kumagai, Motohiro Mizuno, Kazuhide Isomura, Hideo Kishida, Masanari Izumi, Yoshihiro Kubozono, Akihiro Otsuka, Hideki Yamochi, Gunzi Saito, Kaplan Kirakci, Stéphane Cordier and Christiane Perrin

      Article first published online: 20 MAR 2014 | DOI: 10.1002/ejic.201400119

      Thumbnail image of graphical abstract

      The first coronene cation radical salt was electrochemically obtained by combining coronene with a highly-symmetric Mo6Cl142– cluster unit. The salt has a cubic structure with Pmequation imagem symmetry, and merohedrally disordered coronenes undergo an in-plane flipping rotation. The randomly charge-disproportionated coronenes form an isotropic three-dimensional π-conducting network.

    4. Crystal Engineering

      Reversible Solvent-Exchange-Driven Transformations in Multifunctional Coordination Polymers Based on Copper-Containing Organosulfur Ligands (pages 3879–3887)

      Almudena Gallego, Oscar Castillo, Carlos J. Gómez-García, Félix Zamora and Salome Delgado

      Article first published online: 6 MAY 2014 | DOI: 10.1002/ejic.201400085

      Thumbnail image of graphical abstract

      Direct synthesis of a series of coordination polymers based on copper with chloride or bromide and dipyrimidinedisulfide, leads to a structural variety of coordination polymers. The products show crystal-to-crystal transformations and multifunctional electronic properties including semiconductivity, magnetism, and NIR fluorescence.

    5. Lanthanides

      Magnetic Studies of Redox-Active Tetrathiafulvalene-Based Complexes: Dysprosium vs. Ytterbium Analogues (pages 3888–3894)

      Julie Jung, Tamyris T. da Cunha, Boris Le Guennic, Fabrice Pointillart, Cynthia L. M. Pereira, Javier Luzon, Stéphane Golhen, Olivier Cador, Olivier Maury and Lahcène Ouahab

      Article first published online: 21 MAR 2014 | DOI: 10.1002/ejic.201400121

      Thumbnail image of graphical abstract

      The crystal-field energy splitting of the ground-state multiplets of the complexes Dy and Yb was evaluated, and they demonstrate Ising and non-Ising character. Both anisotropy axis directions for the MJ ground states were determined in agreement with the oblate and prolate electronic distribution for DyIII and YbIII ions. This results in SMM and non-SMM behaviour for Dy and Yb, respectively.

    6. Charge-Transfer Salts

      An Organic Metal Derived from a Selenium Analogue of Benzothienobenzothiophene (pages 3895–3898)

      Toshiki Higashino, Tomofumi Kadoya, Shohei Kumeta, Kohei Kurata, Tadashi Kawamoto and Takehiko Mori

      Article first published online: 16 JUN 2014 | DOI: 10.1002/ejic.201402221

      Thumbnail image of graphical abstract

      A charge-transfer salt of the organic semiconductor benzoselenobenzoselenophene (BSBS) with TaF6 is prepared. (BSBS)2TaF6 has a strong one-dimensional character with tetragonal crystal symmetry. In comparison with the sulfur analogue, the resistance jump temperature is reduced, and the low-temperature resistance increase is diminished.

    7. Mixed-Valence Compounds

      Synthesis and Properties of a Mixed-Valence Compound with Single-Step Tunneling and Multiple-Step Hopping Behavior (pages 3899–3911)

      Rim Makhoul, Yuki Kumamoto, Akira Miyazaki, Frédéric Justaud, Frédéric Gendron, Jean-François Halet, Jean-René Hamon and Claude Lapinte

      Article first published online: 19 MAY 2014 | DOI: 10.1002/ejic.201402022

      Thumbnail image of graphical abstract

      The complex trans-[Cp*(dppe)Fe–C≡C–TTFMe2–C≡C–Fe(dppe)Cp*][PF6] [Cp* = η5-C5Me5, dppe = 1,2-bis(diphenylphosphanyl)ethane, TTF = tetrathiafulvalene] is a class II mixed-valence compound in which the spin density varies with the respective orientation of the metal termini. Intramolecular electron transfer occurs through single-step tunneling and multiple-step hopping mechanisms.

    8. Ligand Design

      Tetrathiafulvalene-Based Phenanthroline Ligands: Synthesis, Crystal Structures, and Electronic Properties (pages 3912–3919)

      Esmah Belhadj, Abdelkrim El-Ghayoury, Thomas Cauchy, Magali Allain, Miloud Mazari and Marc Sallé

      Article first published online: 9 APR 2014 | DOI: 10.1002/ejic.201402073

      Thumbnail image of graphical abstract

      Three redox-active phenanthroline–tetrathiafulvalene ligands incorporating different linkers between the accepting and the donating subunits have been synthesized. The critical effect of the linker on the intramolecular charge transfer between both parts is experimentally and theoretically studied.

    9. Crystal Engineering

      Mixed-Valence Biferrocenium Salts of Xn–TCNQ (X = F, Cl; n = 1, 2): Correlation between Molecular Structures and Assembled Structures (pages 3920–3926)

      Tomoyuki Mochida, Yusuke Funasako, Shizue Yamazaki and Hatsumi Mori

      Article first published online: 9 APR 2014 | DOI: 10.1002/ejic.201400093

      Thumbnail image of graphical abstract

      Biferrocenium salts with Xn–TCNQ (X = F, Cl; n = 1, 2) exhibit a 1:2 D/A ratio, consisting of mixed-valence cations and anions containing acceptor dimers. These salts exhibit segregated-stack structures, mixed-stack structures, and intermediate structures depending on the donor substituents.

    10. Conducting Materials

      Tuning the Electronic Properties of Piezoresistive Bilayer Films Based on α-(BEDT-TTF)2I3 (pages 3927–3932)

      Victor Lebedev, Elena Laukhina, Vladimir Laukhin, Concepció Rovira and Jaume Veciana

      Article first published online: 24 JUN 2014 | DOI: 10.1002/ejic.201402276

      Thumbnail image of graphical abstract

      The electrical properties of the conducting layer of piezoresistive all-organic flexible bilayer films are fine tuned without changing their high strain sensitivity.

    11. Radical Cation Salts

      Metallic Bi- and Monolayered Radical Cation Salts Based on Bis(ethylenedithio)­tetrathiafulvalene (BEDT-TTF) with the Tris(oxalato)gallate Anion (pages 3933–3940)

      Tatiana G. Prokhorova, Lev I. Buravov, Eduard B. Yagubskii, Leokadiya V. Zorina, Sergey V. Simonov, Rimma P. Shibaeva and Vladimir N. Zverev

      Article first published online: 9 APR 2014 | DOI: 10.1002/ejic.201400132

      Thumbnail image of graphical abstract

      Bilayered and monolayered metallic radical cation salts based on bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) with the [GaIII(C2O4)3]3–· anion have been prepared and investigated. Metallic α and nonmetallic “pseudo-κ” layers of BEDT-TTF alternate in the structure of the bilayered salt, whereas the conducting layers in the monolayered salt have only metallic β″-type packing.

    12. Functional Materials

      Structural and Physical Properties of (EDO-TTF-Cl)2XF6 (X = As, Sb): Geometrical Aspects for Monosubstituted EDO-TTF (EDO-TTF = 4,5-ethylenedioxytetrathiafulvalene) (pages 3941–3948)

      Manabu Ishikawa, Yoshiaki Nakano, Mikio Uruichi, Akihiro Otsuka, Kyuya Yakushi and Hideki Yamochi

      Article first published online: 24 APR 2014 | DOI: 10.1002/ejic.201400128

      Thumbnail image of graphical abstract

      The semiconducting and metallic compounds (EDO-TTF-Cl)2XF6 (X = As and Sb, respectively) were obtained. Their properties are well correlated with their degree of intracolumnar dimerization. The in-plane intermolecular displacements in the stacking columns are the key parameters to understand the chemical pressure.

    13. Paramagnetic Molecular Metals

      Metallic Charge-Transfer Salts of Bis(ethylenedithio)tetrathiafulvalene with Paramagnetic Tetrachloro(oxalato)rhenate(IV) and Tris(chloranilato)ferrate(III) Anions (pages 3949–3959)

      Samia Benmansour, Eugenio Coronado, Carlos Giménez-Saiz, Carlos J. Gómez-García and Carola Rößer

      Article first published online: 17 APR 2014 | DOI: 10.1002/ejic.201402023

      Thumbnail image of graphical abstract

      Three new paramagnetic molecular conductors have been prepared with the magnetic anions [ReCl4(C2O4)]2– and [Fe(C6O4Cl2)3]3–. ET[ReCl4(C2O4)] [ET = bis(ethylenedithio)tetrathiafulvalene] is a semiconductor that contains ET2+ dications. ET4[ReCl4(C2O4)] is metallic down to 110 K. ET6[Fe(C6O4Cl2)3] has high conductivity and is the first radical salt with a tris(anilato)metalate anion.

    14. Photoresponsive Conductors

      Photofunctional Conductors Based on TTF-BODIPY Dyads Bearing p-Phenylene and p-Phenylenevinylene Spacers (pages 3960–3972)

      Keijiro Tsujimoto, Reiko Ogasawara, Takahiro Nakagawa and Hideki Fujiwara

      Article first published online: 17 MAR 2014 | DOI: 10.1002/ejic.201400103

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      New D–A-type TTF-BODIPY dyads (TTF = tetrathiafulvalene and BODIPY = 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene) with a p-phenylene or p-phenylenevinylene spacer have been synthesized. These dyads exhibit photoresponsive conducting properties such as photoelectric conversion functionality in thin-film samples and photoinduced conductivity in their single-crystal samples.

    15. Supramolecular Conductors

      Effects of Solvent Additives on the Crystal Architecture of Supramolecular Conductors Based on Diiodo(ethylenedithio)tetraselenafulvalene and Indium Tetrahalide Anions (pages 3973–3981)

      Tatsuro Imakubo and Mitsuaki Kobayashi

      Article first published online: 5 JUN 2014 | DOI: 10.1002/ejic.201400127

      Thumbnail image of graphical abstract

      The utilization of solvent additives made it possible to modify the crystal quality, structure, morphology, and composition of cation radical salts based on the π donor diiodo(ethylenedithio)tetraselenafulvalene and indium tetrahalide anions. The addition of a few drops of water as the solvent additive induced the in situ formation of the [InCl4(H2O)2] anion.

    16. Electron Correlation

      Molecular Conductors with Effectively Half-Filled Electronic States Based on Tetrathiafulvalene Derivatives Condensed with a 2-Isopropylidene-1,3-dithiole Ring (pages 3982–3988)

      Keisuke Furuta, Shuhei Kohno, Takashi Shirahata and Yohji Misaki

      Article first published online: 10 APR 2014 | DOI: 10.1002/ejic.201402006

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      Molecular conductors (3)2[M(CN)2] (M = Ag and Au) have been successfully prepared and their physical properties and structures have been investigated. The electronic nature of these salts is the effectively half-filled electronic state. (3)2[Au(CN)2] shows nonmetallic behavior below 50 K. These results suggest that the present salts lie on the border between the metallic and insulating phases.

    17. Dithiolene Complexes

      5-Methylthiophene-2,3-dithiolene Transition Metal Complexes (pages 3989–3999)

      Ana I. S. Neves, Isabel C. Santos, Joana T. Coutinho, Laura C. J. Pereira, Rui T. Henriques, Elsa B. Lopes, H. Alves, Manuel Almeida and Dulce Belo

      Article first published online: 22 MAY 2014 | DOI: 10.1002/ejic.201402048

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      A family of transition metal complexes [M(α-mtpdt)2] (M = Au, Ni, Fe, Cu, Co, Pt and Pd) with a methyl-substituted thiophenedithiolene ligand (α-mtpdt) are synthesised. The Ni and Au complexes can be obtained in their neutral state as stable compounds; they are fairly soluble in organic solvents and have semiconducting properties.

    18. Photoconductors

      Giant Photoconductivity in NMQ[Ni(dmit)2] (pages 4000–4009)

      Toshio Naito, Tomoaki Karasudani, Naoki Nagayama, Keishi Ohara, Kensuke Konishi, Shigeki Mori, Takahiro Takano, Yukihiro Takahashi, Tamotsu Inabe, Shota Kinose, Sadafumi Nishihara and Katsuya Inoue

      Article first published online: 27 MAY 2014 | DOI: 10.1002/ejic.201402035

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      NMQ[Ni(dmit)2] (NMQ = N-methylquinolinium, dmit = 1,3-dithiol-2-thione-4,5-dithiolate exhibits an unusually high ratio of photoconductivity to dark conductivity exclusively under irradiation (375 nm).

    19. Molecular Superconductors

      Four Molecular Superconductors Isolated as Nanoparticles (pages 4010–4016)

      Dominique de Caro, Christophe Faulmann, Lydie Valade, Kane Jacob, Imane Chtioui, Soukaina Foulal, Pascale de Caro, Manon Bergez-Lacoste, Jordi Fraxedas, Belén Ballesteros, James S. Brooks, Eden Steven and Laurel E. Winter

      Article first published online: 16 MAY 2014 | DOI: 10.1002/ejic.201402007

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      Four molecular superconductors have been prepared as nanoparticles by using mainly electrochemical synthesis. Among them, (TMTSF)2ClO4 (TMTSF = tetramethyltetraselenafulvalene) has been the most studied up to now and, like the bulk single crystals, it exhibits superconductivity.

    20. Correlation Effects

      Metal–Insulator Interplays Rendered by Lattice Transformations and Structural Disorder in DOEO Salts (pages 4017–4027)

      Andrey A. Bardin, Alexander I. Kotov, Lev I. Buravov, Salavat S. Khasanov and Rimma P. Shibaeva

      Article first published online: 1 AUG 2014 | DOI: 10.1002/ejic.201402350

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      Two polymorphs were observed for DOEO2NO3(H2O): β and β″.The β polymorph is a Mott insulator with U/W = 1.66, where U is an on-site Coulomb repulsion and W is a bandwidth, whereas β″ is a stable metal with a wide 1/4-filled (W = 1 eV) upper band. DOEO2HSO4(H2O) also shows β″ packing. Electronic structures and conductivities of both β″ compounds are nearly the same. Their X-ray structures are similar, however not isostructural.

    21. Semiconductor Crystal Engineering

      Synthesis, Crystal Structure, and Characterization of the Charge-Transfer Salt (BEDT-TTF)[Fe(C2O4)Cl2](CH2Cl2), {BEDT-TTF = Bis(ethylenedithio)tetrathiafulvalene} (pages 4028–4032)

      Bin Zhang, Yan Zhang, Zengqiang Gao, Guangcai Chang, Shaokui Su, Dongwei Wang, Yanjun Guo and Daoben Zhu

      Article first published online: 20 MAY 2014 | DOI: 10.1002/ejic.201402112

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      The title compound has been synthesized and studied, and it was found that the donor layers in the organic–inorganic hybrid charge-transfer salt, which is composed of BEDT-TTF1.0+ dimers and CH2Cl2, are separated by zigzaged anion chains. The compound is a semiconductor and shows strong antiferromagnetic interactions between the oxalate-bridged metal atoms.

    22. Electron States in Polyacenes

      Systematic Study of the Electronic States in Electron-Doped Polyacenes (pages 4033–4038)

      Quynh T. N. Phan, Satoshi Heguri, Yoichi Tanabe, Hidekazu Shimotani and Katsumi Tanigaki

      Article first published online: 5 AUG 2014 | DOI: 10.1002/ejic.201402381

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      We prepared K-intercalated polyacenes (PLAs) by using an improved methodology. The magnetic susceptibilities as a function of temperature for Kx(PLAs) are described in the framework of a band-filling model. We successfully tuned the electronic states of the fused-ring semiconductors in bulk.

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