ChemPlusChem

Cover image for Vol. 77 Issue 6

June 2012

Volume 77, Issue 6

Pages 413–496

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    1. You have free access to this content
      Cover Picture: Ethanol Recovery from Water Using Silicalite-1 Membrane: An Operando Infrared Spectroscopic Study (ChemPlusChem 6/2012) (page 413)

      Xiaoqin Zou, Dr. Philippe Bazin, Feng Zhang, Prof. Guangshan Zhu, Dr. Valentin Valtchev and Dr. Svetlana Mintova

      Article first published online: 8 JUN 2012 | DOI: 10.1002/cplu.201290025

      Thumbnail image of graphical abstract

      The cover picture shows the separation of ethanol from water using silicalite-1 membrane. The silicalite-1 membrane supported on a porous stainless-steel net has high ethanol selectivity combined with a high flux. Besides, the high mechanical stability and crack resistance of the membrane are revealed. As outlined by S. Mintova and co-workers in their Full Paper on page 437 ff., the supported silicalite-1 membrane is appropriate for ethanol extraction from aqueous bio-ethanol systems such as fermentation broths/biomass.

  2. Masthead

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    1. Masthead: ChemPlusChem 6/2012 (page 414)

      Article first published online: 8 JUN 2012 | DOI: 10.1002/cplu.201290026

  3. Graphical Abstract

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    1. Graphical Abstract: ChemPlusChem 6/2012 (pages 415–419)

      Article first published online: 8 JUN 2012 | DOI: 10.1002/cplu.201290027

  4. News

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

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    1. Synthesis and Stabilisation of MgH2 Nanoparticles by Self-Assembly (pages 423–426)

      Dr. Kondo-Francois Aguey-Zinsou and Dr. Cyrille Boyer

      Article first published online: 29 MAR 2012 | DOI: 10.1002/cplu.201200027

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      A simple and scalable method for the synthesis and stabilisation of MgH2 nanoparticles by self-assembly and confinement has been developed. An azide-terminated poly(styrene; PSTN) with good thermal stability provided a nucleation point for anchoring the polymer at the magnesium surface (see scheme). The hybrid PSTN/MgH2 nanotubes maintain relatively fast kinetics and retaining a third of the theoretical hydrogen storage capacity of magnesium.

    2. Amarastelline A: A Fluorescent Alkaloid from Quassia amara and Its Properties in Living Cells (pages 427–431)

      Kaori Taniguchi, Dr. Shinya Takizawa, Dr. Tomoya Hirano, Prof. Shigeru Murata, Prof. Hiroyuki Kagechika, Prof. Akio Kishida and Dr. Ayumi Ohsaki

      Article first published online: 30 MAR 2012 | DOI: 10.1002/cplu.201200016

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      A new alkaloid, amarastelline A (1), consisting of a canthin and a carboline unit, was isolated from the bark of Quassia amara. Compound 1 is strongly fluorescent under UV light (365 nm) in a variety of solvents and stains the cell cytoplasm region of living cervical cancer HeLa cells.

    3. Plasma Synthesis of Surface-Functionalized Graphene-Based Platinum Nanoparticles: Highly Active Electrocatalysts as Electrodes for Direct Methanol Fuel Cells (pages 432–436)

      Dr. Qi Wang, Mingming Song, Dr. Changlun Chen, Prof. Wenping Hu and Prof. Xiangke Wang

      Article first published online: 11 APR 2012 | DOI: 10.1002/cplu.201200070

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      A facile, in situ plasma synthesis of surface functionalized graphene-based Pt nanoparticles has been achieved. The H-doped graphene (GH) and N-doped graphene (GHA) were prepared by reduction of grapheme oxide (GO) in hydrogen and ammonia plasma, respectively. The GH-based Pt NPs (Pt/GH) and GHA-based Pt NPs (Pt/GHA) were prepared by simultaneous reduction of GH and H2PtCl6 or GHA and H2PtCl6 under hydrogen plasma, respectively. The electrocatalytic activity of the Pt/GH and Pt/GHA were studied.

  6. Full Papers

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Graphical Abstract
    5. News
    6. Communications
    7. Full Papers
    1. Ethanol Recovery from Water Using Silicalite-1 Membrane: An Operando Infrared Spectroscopic Study (pages 437–444)

      Xiaoqin Zou, Dr. Philippe Bazin, Feng Zhang, Prof. Guangshan Zhu, Dr. Valentin Valtchev and Dr. Svetlana Mintova

      Article first published online: 12 APR 2012 | DOI: 10.1002/cplu.201200048

      Thumbnail image of graphical abstract

      Ethanol recovery: Operando IR spectroscopy and mass spectrometry have been applied to study the silicalite-1 membrane in mixtures of ethanol and water. The membrane is resistant to cracking, has high mechanical stability, and shows high ethanol selectivity combined with a high flux (see figure; DC=diffusion coefficient). The supported silicalite-1 membrane is suitable for ethanol extraction from aqueous bioethanol system.

    2. Intermolecular Rhodium-Catalysed Hydroamination of Non-Activated Olefins: Effect of Olefin, Amine, Phosphine and Phosphonium Salt (pages 445–454)

      Dr. Mireia Rodriguez-Zubiri, Dr. Christine Baudequin, Aurélien Béthegnies and Dr. Jean-Jacques Brunet

      Article first published online: 23 MAR 2012 | DOI: 10.1002/cplu.201200017

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      The right combination: RhCl3⋅3H2O/P(p-CH3C6H4)3/nBu4PI/I2 led to the highest catalytic activity for the intermolecular hydroamination of ethylene, 1-butene, and 1-hexene with aniline-type amines. Excellent activities were also found using RhI Wilkinson's catalysts and the very efficient “in-situ generated” I from PPh3/I2, which can substitute pre-synthesized nBu4PI (see scheme; CE=catalytic efficiency).

    3. Facile Synthesis of Uniform CdS Hollow Spheres in an Ethanol System and Their Enhanced Photocatalytic Activity (pages 455–461)

      Xiufang Wang, Shizhen Yuan and Guangmei Chen

      Article first published online: 30 MAR 2012 | DOI: 10.1002/cplu.201100085

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      Flower power: Monodisperse, flowerlike CdS hollow spheres have been synthesized by employing sulfur as the sulfate source derived from a solution of tungstosilicate acid (H4SiW12O40) in ethanol under UV irradiation. The CdS hollow nanostructures have extraordinary photocatalytic activity for the photodegradation of rhodamine B under irradiation with visible light (see graph).

    4. Metal-Free and Fluorescent Diketopyrrolopyrrole Fluorophores for Dye-Sensitized Solar Cells (pages 462–469)

      Delphine Hablot, Dr. Ashraful Islam, Liyuan Han and Dr. Raymond Ziessel

      Article first published online: 11 APR 2012 | DOI: 10.1002/cplu.201200059

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      To dye for: Dipyrrolopyrrole dyes bearing pendent solubilizing groups and dimethylaminopropyne-phenyl or -thiophene residues on one side and a carboxylic function on the other side have been prepared in a completely controlled manner using a three-step procedure. These fluorescent dyes were used in dye-sensitized solar cells with nanocrystalline TiO2, and exhibit a maximum conversion of 2.54 %, Jsc=7.5 mA cm−2, Voc=0.49 V, and FF=0.70.

    5. Chlorine-Doped ZnSe Nanoribbons with Tunable n-Type Conductivity as High-Gain and Flexible Blue/UV Photodetectors (pages 470–475)

      Zhi Wang, Prof. Jiansheng Jie, Fangze Li, Prof. Li Wang, Tianxin Yan, Prof. Linbao Luo, Biao Nie, Chao Xie, Peng Jiang, Xiwei Zhang, Yongqiang Yu and Prof. Chunyan Wu

      Article first published online: 12 APR 2012 | DOI: 10.1002/cplu.201100063

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      ZnSe nanoribbons: Thermal co-evaporation has been used to synthesized chlorine-doped ZnSe nanoribbons (ZnSe:Cl NRs) that have controlled n-type conductivity (see figure). These doped NRs show potential as high-performance blue/UV photodetectors and their application in flexible optoelectronics was exploited.

    6. The Protonation of Dimethyl Sulfoxide: Spectroscopic Examinations of [(CX3)2SOX]+MF6 (X=H, D; M=As, Sb) and the X-Ray Structure of [(CH3)2SOH+]4Ge3F164− (pages 476–481)

      Mathias Hopfinger, Dr. Karin Lux and Prof. Dr. Andreas Kornath

      Article first published online: 18 APR 2012 | DOI: 10.1002/cplu.201200037

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      Completely protonated molecules: Protonated dimethyl sulfoxide, [(CH3)2SOH]+, was prepared in the condensed phase using the superacidic solutions of XF/MF5 and XF/GeF4 (X=H, D; M=As, Sb). The salts were characterized by vibrational and NMR spectroscopy. Besides the cation, the crystal structure of the salt contains a novel fluridogermanate anion, Ge3F164−, consisting of a chain of three slightly distorted fluorine-bridged GeF6 octahedra (see structure; Ge3F16 green, O red, S yellow, C gray).

    7. Spectroscopy and Structure of LnIII Complexes with Sulfonylamidophosphate-Type Ligands as Sensitizers of Visible and Near-Infrared Luminescence (pages 482–496)

      Dr. Paula Gawryszewska, Dr. Olesia V. Moroz, Dr. Victor A. Trush, Prof. Vladimir M. Amirkhanov, Prof. Tadeusz Lis, Dr. Marcin Sobczyk and Miłosz Siczek

      Article first published online: 18 APR 2012 | DOI: 10.1002/cplu.201200026

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      A new class of lanthanide complexes with π-conjugated ligands having the structural fragment SO2NHP(O) show promise as molecular devices for converting UV into Vis and IR radiation. LnIII is eight-coordinated with the primary coordination sphere made up of four ligands and NaI connects the [Ln(L)4] units (Ln=NdIII, EuIII, GdIII, TbIII, ErIII, YbIII; L=ligand). The influence of the π–π stacking interactions in one polymeric chain on ligand-to-metal energy transfer efficiency has been shown for the first time.

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