ChemPlusChem

Cover image for Vol. 79 Issue 10

October 2014

Volume 79, Issue 10

Pages 1369–1531

  1. Cover Pictures

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. News
    6. Masthead
    7. Review
    8. Communication
    9. Full Papers
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      Cover Picture: Diethyl Tartrate Linked Chiral Macrocyclic Manganese(III)–Salen Complex for Enantioselective Epoxidation of Olefins and Oxidative Kinetic Resolution of Racemic Secondary Alcohols (ChemPlusChem 10/2014) (page 1369)

      Nabin Ch. Maity, Prasanta Kumar Bera, S. Saravanan , Dr. Sayed H. R. Abdi , Dr. Rukhsana I. Kureshy , Dr. Noor-ul H. Khan  and Dr. Hari C. Bajaj 

      Article first published online: 6 AUG 2014 | DOI: 10.1002/cplu.201402207

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      The front cover picture shows a single metal complex that can catalyse asymmetric epoxidation of non-functionalised olefins as well as the oxidative kinetic resolution of racemic alcohols with great ease. In this way the use of expensive homogeneous catalyst can be maximised by carrying out two asymmetric organic transformations. Details are given in the Full Paper on page 1426 by Sayed H. R. Abdi and co-workers.

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      Back Cover: The Major Influences of Substituent Size and Position of 3,4-Propylenedioxythiophene on the Formation of Highly Hydrophobic Nanofibers (ChemPlusChem 10/2014) (page 1534)

      Claudio Mortier, Dr. Thierry Darmanin and Prof. Frédéric Guittard

      Article first published online: 18 JUL 2014 | DOI: 10.1002/cplu.201402216

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      The back cover picture shows the huge influence of substituent position and size on the formation of surface structures, in this case nanofibers, and the resulting surface hydrophobicity by electrodeposition of substituted poly(3,4-propylenedioxythiophene). Details are given in the Full Paper on page 1434 by Frédéric Guittard and co-workers.

  2. Cover Profile

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. News
    6. Masthead
    7. Review
    8. Communication
    9. Full Papers
    1. You have free access to this content
      Diethyl Tartrate Linked Chiral Macrocyclic Manganese(III)–Salen Complex for Enantioselective Epoxidation of Olefins and Oxidative Kinetic Resolution of Racemic Secondary Alcohols (page 1370)

      Nabin Ch. Maity, Prasanta Kumar Bera, S. Saravanan , Dr. Sayed H. R. Abdi , Dr. Rukhsana I. Kureshy , Dr. Noor-ul H. Khan  and Dr. Hari C. Bajaj 

      Article first published online: 6 AUG 2014 | DOI: 10.1002/cplu.201402205

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      we strive to understand the mechanism involved in catalytic cycles in order to further modify the catalytic processes” This and more about the story behind the cover in the Cover Profile and about the research itself on page 1426.

  3. Graphical Abstract

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    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. News
    6. Masthead
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    9. Full Papers
    1. Graphical Abstract: ChemPlusChem 10/2014 (pages 1371–1376)

      Article first published online: 6 OCT 2014 | DOI: 10.1002/cplu.201490027

  4. News

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. News
    6. Masthead
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  5. Masthead

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    1. Masthead: ChemPlusChem 10/2014 (page 1381)

      Article first published online: 6 OCT 2014 | DOI: 10.1002/cplu.201490028

  6. Review

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    9. Full Papers
    1. Ferrofluids: Synthetic Strategies, Stabilization, Physicochemical Features, Characterization, and Applications (pages 1382–1420)

      Aswathy Joseph and Prof. Dr. Suresh Mathew

      Article first published online: 1 SEP 2014 | DOI: 10.1002/cplu.201402202

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      A magnetic personality: This Review covers different aspects of research into the smart magnetic nanofluids known as ferrofluids (FFs), including their synthesis, stabilization, and physicochemical properties. The rheological and thermal properties, dynamic instabilities, phase behavior, and particle assemblies in FFs to form complex multipolar geometries, photonic nanostructures, labyrinth structures, thin films, and droplets are also detailed (see figure).

  7. Communication

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    6. Masthead
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    1. You have full text access to this OnlineOpen article
      Stratified Dipole-Arrays Model Accounting for Bulk Properties Specific to Perfluoroalkyl Compounds (pages 1421–1425)

      Prof. Takeshi Hasegawa, Dr. Takafumi Shimoaka, Nobutaka Shioya, Kohei Morita, Prof. Masashi Sonoyama, Dr. Toshiyuki Takagi and Dr. Toshiyuki Kanamori

      Article first published online: 30 JUL 2014 | DOI: 10.1002/cplu.201402156

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      Chain effects: A perfluoroalkyl (Rf) group with (CF2)9 or longer spontaneously aggregates in a hexagonal manner through the stratified dipole-arrays aggregation mechanism, which explains Rf-specific bulk properties (see picture).

  8. Full Papers

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. News
    6. Masthead
    7. Review
    8. Communication
    9. Full Papers
    1. Diethyl Tartrate Linked Chiral Macrocyclic Manganese(III)–Salen Complex for Enantioselective Epoxidation of Olefins and Oxidative Kinetic Resolution of Racemic Secondary Alcohols (pages 1426–1433)

      Nabin Ch. Maity, Prasanta Kumar Bera, S. Saravanan , Dr. Sayed H. R. Abdi , Dr. Rukhsana I. Kureshy , Dr. Noor-ul H. Khan  and Dr. Hari C. Bajaj 

      Article first published online: 30 JUN 2014 | DOI: 10.1002/cplu.201402131

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      Proceed with determination: A diethyl tartrate linked chiral macrocyclic MnIII–salen (salen=N,N′-ethylenebis(salicylimine); see picture) complex has been used for the enantioselective epoxidation of nonfunctionalized alkenes and for the oxidative kinetic resolution of racemic alcohols.

    2. The Major Influences of Substituent Size and Position of 3,4-Propylenedioxythiophene on the Formation of Highly Hydrophobic Nanofibers (pages 1434–1439)

      Claudio Mortier, Dr. Thierry Darmanin and Prof. Frédéric Guittard

      Article first published online: 1 SEP 2014 | DOI: 10.1002/cplu.201402187

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      Choosing a position: The controlled formation of hydrophobic fibers by careful choice of the position of the hydrophobic substituent has been achieved. The 3-position of 3,4-propylenedioxythiophene is the best to preserve the presence of nanofibers when a voluminous substituent is introduced, owing to longer polymer chains and higher hydrophobicity (see figure).

    3. Tin Nanoparticles in Carbon/Silica Hybrid Materials by the Use of Twin Polymerization (pages 1440–1447)

      Christian Leonhardt, Susann Brumm, Dr. Andreas Seifert, Dr. Arno Lange, Dr. Szilard Csihony and Prof. Dr. Michael Mehring

      Article first published online: 10 JUL 2014 | DOI: 10.1002/cplu.201402137

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      Twin-(em)bedded: Uniformly distributed tin nanoparticles embedded in a carbon/silica matrix have been obtained from tin and silica precursors by the use of the twin polymerization process followed by reduction with Ar/H2 (see figure). The final Sn@C/SiO2 hybrid materials have high BET surface areas up to 352 m2 g−1 and tin particle sizes in the range of 20–100 nm.

    4. One-Step Approach to 2,5-Diformylfuran from Fructose by Using a Bifunctional and Recyclable Acidic Polyoxometalate Catalyst (pages 1448–1454)

      Ruliang Liu, Prof. Dr. Jinzhu Chen, Dr. Limin Chen, Yuanyuan Guo and Jiawei Zhong

      Article first published online: 17 JUL 2014 | DOI: 10.1002/cplu.201402147

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      Balance of sites: A one-step approach to 2,5-diformylfuran from fructose is achieved with Cs3HPMo11VO40 as a bifunctional, recyclable catalyst with molecular oxygen as oxidant under environmentally benign conditions (see picture). Cs3HPMo11VO40 behaves as a heterogeneous catalyst and can be easily reused.

    5. Bottom-Up Hybridization: A Strategy for the Preparation of a Thermostable Polyoxometalate–Polymer Hybrid with Hierarchical Hybrid Structures (pages 1455–1462)

      Jing Tang, Dr. Wei Yu, Dr. Min-Biao Hu, Yu Xiao, Xiao-Gang Wang, Li-Jun Ren, Ping Zheng, Dr. Wen Zhu, Prof. Dr. Yongming Chen and Prof. Dr. Wei Wang

      Article first published online: 15 JUL 2014 | DOI: 10.1002/cplu.201402092

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      Back to basics: A hybrid molecule of a polyoxometalate (POM) cluster and a polymer chain linked with a covalent bond produces hierarchical structures: hybrid lamellae and hybrid superstructures (see picture). The strong electrostatic interactions of the POM cluster are retained, and thus, add thermostability to the mechanical properties of the hybrid materials through the structural hierarchy.

    6. Design and Characterization of Two Bifunctional Cryptophane A-Based Host Molecules for Xenon Magnetic Resonance Imaging Applications (pages 1463–1471)

      Federica Rossella, Dr. Honor May Rose, Dr. Christopher Witte, Dr. Jabadurai Jayapaul and Dr. Leif Schröder

      Article first published online: 16 JUL 2014 | DOI: 10.1002/cplu.201402179

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      Label mates: Bifunctional biosensors for optical imaging and xenon magnetic resonance imaging (MRI) have been designed. Compounds that contain a cryptophane molecule and bear a fluorophore were compared. Both displayed good cellular uptake suitable for cell-labeling studies. These compounds are also flexible building blocks for the synthesis of more complex xenon-MRI biosensors (see figure).

    7. 2-Phenylquinoline-Based Cyclometalated Platinum(II) Complexes: Synthesis and Structure–Photoelectric Properties Relationship in Oxygen Sensing (pages 1472–1481)

      Dr. Chun Liu, Xinlong Song, Zhonggang Wang and Jieshan Qiu

      Article first published online: 16 JUL 2014 | DOI: 10.1002/cplu.201402125

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      Phosphorescence: A series of novel 2-phenylquinoline-based cyclometalated PtII complexes are synthesized and fully characterized. The results of the O2-sensing sensitivity analyses of the PtII complexes show that the complex with a triphenylamine group on the quinoline exhibits the highest sensitivity (see figure). The present work provides the first example of a series of 2-phenylquinoline-based cyclometalated PtII complexes for efficient O2 sensing.

    8. A New Class of Phase-Selective Synthetic β-Amino Acid Based Peptide Gelator: From Mechanistic Aspects to Oil Spill Recovery (pages 1482–1488)

      Maruthi Konda, Indrajit Maity, Dnyaneshwar B. Rasale and Dr. Apurba K. Das

      Article first published online: 22 JUL 2014 | DOI: 10.1002/cplu.201402120

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      Pick and choose: The mechanistic aspects of supramolecular ordering of a nanoscale β-amino acid based phase-selective peptide gelator are reported. Furthermore, the phase-selective gelation process is efficiently used for oil spill recovery.

    9. Synthesis of Bright Alkenyl-1H-1,2,4-triazoles: A Theoretical and Photophysical Study (pages 1489–1497)

      Dr. Cristina Cebrián, Dr. Juan de Mata Muñoz, Dr. Cristian Alejandro Strassert, Dr. Pilar Prieto, Prof. Ángel Díaz-Ortiz, Prof. Luisa De Cola and Prof. Antonio de la Hoz

      Article first published online: 23 JUL 2014 | DOI: 10.1002/cplu.201402153

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      Bright 1H-1,2,4-triazoles: A series of alkenyl-1H-1,2,4-triazoles has been synthesized by the eco-friendly Hiyama coupling under microwave irradiation (see figure). The compounds are good blue emitters, with their photophysical properties dependent on the substituent pattern. The emission was modeled computationally, which resulted in a predictive method that could be used for the a priori evaluation of the emissive properties from new related compounds.

    10. The Oxygen Reduction Reaction in Ferrofluids: Towards Membrane-less and Spill-less Gas Sensors (pages 1498–1506)

      Dr. Janjira Panchompoo, Mengchen Ge, Dr. Chuan Zhao, Dr. May Lim and Dr. Leigh Aldous

      Article first published online: 30 JUL 2014 | DOI: 10.1002/cplu.201402105

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      Spill-less droplets: An aqueous ferrofluid based upon poly(diallyldimethyl ammonium chloride)-coated maghemite (γ-Fe2O3) iron oxide nanoparticles can be used on disposable screen-printed electrodes to create simple membrane-less and spill-less gas sensors (see figure). Apparent electrocatalysis towards the oxygen reduction reaction is observed owing to the polymer; an applied magnetic field strength both immobilises the electrolyte and enhances the oxygen reduction current.

    11. Electrochemical Characterization of Gel Electrolytes for Aqueous Lithium-Ion Batteries (pages 1507–1511)

      Dr. Jelena Stojadinović, Anastasiya Dushina, Dr. Rafael Trócoli and Dr. Fabio La Mantia

      Article first published online: 30 JUL 2014 | DOI: 10.1002/cplu.201402143

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      Opening the window: Gelation of 2 M Li2SO4 with carboxymethyl cellulose (CMC) and agar results in the augmentation of the electrochemical stability window ΔE (see figure) relative to that of the liquid electrolyte, and in the reduction of the electrolyte ionic conductivity.

    12. Tuning the Mechanical and Adsorption Properties of Silica with Graphene Oxide (pages 1512–1522)

      Dr. Vivek K. Singh, M. Erkin Cura, Dr. Xuwen Liu, Dr. Leena-Sisko Johansson, Dr. Yanling Ge and Prof. Dr. Simo-Pekka Hannula

      Article first published online: 30 JUL 2014 | DOI: 10.1002/cplu.201402138

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      Get set, GO! Silica/graphene oxide (GO) composite powders of various compositions have been synthesized and compacted by spark plasma sintering. The optical and mechanical properties of silica were tuned by varying the GO content (see figure). Improved fracture toughness occurred with increasing amount of GO. Powders were also applied to Cu removal from water; the adsorption properties of silica were improved with a high concentration of GO.

    13. Interplay between Resonance-Assisted Hydrogen Bonding and Coordination in Sulfo-Functionalized Arylhydrazones of Active Methylene Compounds (pages 1523–1531)

      Dr. Kamran T. Mahmudov, Dr. Maximilian N. Kopylovich, Prof. M. Fátima C. Guedes da Silva and Prof. Armando J. L. Pombeiro

      Article first published online: 8 AUG 2014 | DOI: 10.1002/cplu.201402088

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      E/Z resolution: Hydrogen bonding and coordination can interact towards isomeric resolution and preparation of different types of coordination compounds (see scheme).

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