ChemPlusChem

Cover image for Vol. 77 Issue 12

December 2012

Volume 77, Issue 12

Pages 1051–1139

  1. Cover Pictures

    1. Top of page
    2. Cover Pictures
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    8. Masthead
    1. Cover Picture: Shape-Defined and Shape-Shifting Paramagnetic Organic Nano/Microstructures Derived From a Doublet State Nitronyl Nitroxide Radical (ChemPlusChem 12/2012) (page 1051)

      Pramiti Hui and Prof. Dr. Rajadurai Chandrasekar

      Version of Record online: 13 DEC 2012 | DOI: 10.1002/cplu.201290051

      Thumbnail image of graphical abstract

      The cover picture shows generation of nano/microscale paramagnetic solid structures from a doublet spin state nitronyl nitroxide radical derivative by using a bottom-up self-assembly technique and their electron paramagnetic resonance spectroscopy studies as described by R. Chandrasekar and P. Hui in their Communication on page 1062 ff. In the background, the University of Hyderabad Lake represents the involvement of environment friendly water in the self-assembly process. At room temperature the evaporation of an acetonitrile solution of radical forms a porous film at a SiO2 surface, and in acetonitrile/water it forms solution stable nanovesicles, which shape-shift into metastable crystalline nanoparticles upon ultrasonication and after a month they revert back into vesicles.

    2. Back Cover Picture: Coupling of Azomethine Ylides with Nitrilium Derivatives of closo-Decaborate Clusters: A Synthetic and Theoretical Study (ChemPlusChem 12/2012) (page 1140)

      Aleksey L. Mindich, Nadezhda A. Bokach, Maxim L. Kuznetsov, Matti Haukka, Andrey P. Zhdanov, Konstantin Yu. Zhizhin, Serguei A. Miltsov, Nikolay T. Kuznetsov and Vadim Yu. Kukushkin

      Version of Record online: 13 DEC 2012 | DOI: 10.1002/cplu.201290056

      Thumbnail image of graphical abstract

      The back cover picture shows the structure of a borylated enamino ketone surrounded by holiday ornaments. N. A. Bokach, V. Y. Kukushkin, and co-workers report a novel reaction between closo-decaborate clusters and azomethine ylides, which selectively affords products of nucleophilic addition, for example, the borylated enamino ketones. A full account can be found in their Full Paper on page 1075 ff.

  2. Masthead

    1. Top of page
    2. Cover Pictures
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    8. Masthead
    1. Masthead: ChemPlusChem 12/2012 (page 1052)

      Version of Record online: 13 DEC 2012 | DOI: 10.1002/cplu.201290052

  3. Graphical Abstract

    1. Top of page
    2. Cover Pictures
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    8. Masthead
  4. News

    1. Top of page
    2. Cover Pictures
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    8. Masthead
  5. Communications

    1. Top of page
    2. Cover Pictures
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    8. Masthead
    1. Shape-Defined and Shape-Shifting Paramagnetic Organic Nano/Microstructures Derived From a Doublet State Nitronyl Nitroxide Radical (pages 1062–1065)

      Pramiti Hui and Prof. Dr. Rajadurai Chandrasekar

      Version of Record online: 31 JUL 2012 | DOI: 10.1002/cplu.201200143

      Thumbnail image of graphical abstract

      Get into shape! Nano/microscale shape defined paramagnetic porous film, and reversibly shape shifting vesicles and nanoparticles were successfully prepared in a controlled manner from a stable nitronyl nitroxide radical derivative through solvent-, surface- and ultrasound-assisted self-assembly.

    2. Attachment of Proteins to Surfaces by Fluorous–Fluorous Interactions Restoring Their Structure and Activity (pages 1066–1070)

      Hartmut M. Rapp, Stefanie Bacher, Anika Ahrens, Dr. Wolfgang Rapp, Dr. Bernd Kammerer, Prof. Dr. G. Ulrich Nienhaus and Prof. Dr. Willi Bannwarth

      Version of Record online: 8 NOV 2012 | DOI: 10.1002/cplu.201200234

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      Above the fold: An innovative strategy using a multifunctional linker system for the specific noncovalent immobilization of proteins to glass surfaces through fluorous–fluorous interactions without causing significant denaturation has been achieved. The principle was demonstrated for the enzymes RNase H and recombinant horseradish peroxidase (see figure).

    3. Nitrocatechols as Tractable Surface Release Systems (pages 1071–1074)

      Robin Wehlauch, Johannes Hoecker and Prof.Dr. Karl Gademann

      Version of Record online: 22 OCT 2012 | DOI: 10.1002/cplu.201200251

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      Anchor aweigh! The synthesis and evaluation of new nitrocatechols for surface modification and tractable release on TiO2 are reported (see scheme). The properties of catecholate anchoring and nitrophenyl-based photocleavable release were merged to create a new tool for surface immobilization and controlled release of small molecules, which was investigated on caged fluorophores as proof-of-principle.

  6. Full Papers

    1. Top of page
    2. Cover Pictures
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    8. Masthead
    1. Coupling of Azomethine Ylides with Nitrilium Derivatives of closo-Decaborate Clusters: A Synthetic and Theoretical Study (pages 1075–1086)

      Aleksey L. Mindich, Nadezhda A. Bokach, Maxim L. Kuznetsov, Matti Haukka, Andrey P. Zhdanov, Konstantin Yu. Zhizhin, Serguei A. Miltsov, Nikolay T. Kuznetsov and Vadim Yu. Kukushkin

      Version of Record online: 23 NOV 2012 | DOI: 10.1002/cplu.201200257

      Thumbnail image of graphical abstract

      Boron clusters: The first examples of a selective nucleophilic addition of pyridinium azomethine ylides to the nitrile group and of new C[BOND]C bond formation in the reaction of nitrilium derivatives of boron clusters with nucleophiles are presented. Theoretical considerations of plausible mechanisms and driving forces of the reactions were investigated in detail.

    2. Supramolecular Isomerism of One-Dimensional Copper(II) Phosphonate and Its Influence on the Magnetic Properties (pages 1087–1095)

      Dr. Jian Huang, Ping-Ying Liu, Hui Zhu, Dr. Song-Song Bao, Prof. Dr. Li-Min Zheng and Prof. Dr. Jing Ma

      Version of Record online: 9 OCT 2012 | DOI: 10.1002/cplu.201200188

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      Chain gang: Isomeric chain compounds [Cu(pmbp)]⋅2.5 H2O (1), [Cu(pmbp)]⋅2 H2O (2), and [Cu(pmbp)(H2O)]⋅x H2O (3) (pmbp=1-phosphonomethyl-2-benzimidazolpyrrolidine) show dominant antiferromagnetic interactions with coupling constants that vary significantly owing to slightly different packing structures (see figure).

    3. Interfacial and Film-Formation Behaviour of Photoactive RuII–Bipyridyl-Based Metallosurfactants and a Rare Example of a Monolayer-Based Logic-Gate Approach (pages 1096–1105)

      Prasenjit Mahato, Sukdeb Saha, Dr. Sipra Choudhury and Dr. Amitava Das

      Version of Record online: 30 OCT 2012 | DOI: 10.1002/cplu.201200207

      Thumbnail image of graphical abstract

      On the surface of things: Three amphiphilic tris(bipyridyl)–ruthenium(II) complexes with different chain lengths were found to form a monolayer at the air–water interface. Langmuir–Blodgett (LB) film formation was characterised by surface pressure–area isotherms and Brewster angle microscopy. Optical responses observed on oxidation of RuII centres in the LB monolayer by Ce4+ demonstrate a one-input sequential logic-gate operation (see figure).

    4. Synthesis and Properties of Room-Temperature Choline Carboxylate Zwitterionic Ionic Liquids as Potential Electrolytes (pages 1106–1111)

      Ângelo Rocha, Tânia Carvalho, Dr. Pedro Vidinha and Dr. Nuno M. T. Lourenço

      Version of Record online: 19 NOV 2012 | DOI: 10.1002/cplu.201200247

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      Choline ionic liquids: Two new choline carboxylate zwitterions have been prepared by two different synthetic routes through esterification with anhydrides. Their conjugation with lithium bis(trifluoromethylsulfonyl)imide resulted in the formation of room-temperature ionic liquids with excellent conductivities (see figure).

    5. Tuning Fluorescent Molecules by Inclusion in a Metal–Organic Framework: An Experimental and Computational Study (pages 1112–1118)

      Dr. Dongpeng Yan, Dr. Gareth O. Lloyd, Dr. Amit Delori, Prof. William Jones and Prof. Xue Duan

      Version of Record online: 24 OCT 2012 | DOI: 10.1002/cplu.201200245

      Thumbnail image of graphical abstract

      Fluorescent materials: Two linear π-conjugated fluorescent molecules, 1,4-bis-p-cyanostyrylbenzene and 1,4-bis(5-phenyloxazol-2-yl)benzene, have been incorporated into a metal–organic framework system, which shows tunable fluorescence characteristics (see figure).

    6. Synthesis of Transition-Metal Exchanged Nanocrystalline ZSM-5 and Their Application in Electrochemical Oxidation of Glucose and Methanol (pages 1119–1127)

      Balwinder Kaur, M. U. Anu Prathap and Dr. Rajendra Srivastava

      Version of Record online: 19 NOV 2012 | DOI: 10.1002/cplu.201200236

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      Nanocrystalline ZSM-5-modified electrodes exhibit high electrocatalytic activity towards oxidation of glucose and methanol (see figure). Enhancement in the electrocatalytic activity is correlated with the accessibility of glucose/methanol to M2+ active centers in the nanocrystalline ZSM-5 owing to its large surface area and intercrystalline mesopores. Glucose concentration in human blood serum was determined.

    7. Peroxometalates Immobilized on Magnetically Recoverable Catalysts for Epoxidation (pages 1128–1138)

      Yunxiang Qiao, Dr. Huan Li, Li Hua, Dr. Lars Orzechowski, Dr. Kai Yan, Dr. Bo Feng, Zhenyan Pan, Dr. Nils Theyssen, Prof. Walter Leitner and Prof. Zhenshan Hou

      Version of Record online: 24 OCT 2012 | DOI: 10.1002/cplu.201200246

      Thumbnail image of graphical abstract

      Catalytically active species, namely ionic-liquid-type peroxometalates, were immobilized by either hydrogen bonding interactions or covalent links. The magnetically separable nanocatalysts were evaluated in the epoxidation of olefins and allylic alcohols. The catalysts showed essentially constant activity after at least ten consecutive cycles. The active peroxometalate species with hydrogen bonding showed better catalytic stability than that with covalent links.

  7. Masthead

    1. Top of page
    2. Cover Pictures
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    8. Masthead
    1. Masthead: ChemPlusChem 12/2012 (page 1139)

      Version of Record online: 13 DEC 2012 | DOI: 10.1002/cplu.201290055

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