Chemistry - A European Journal

Cover image for Vol. 20 Issue 35

Editor: Neville Compton, Deputy Editors: Anne Deveson, Elisabeth Roedern

Impact Factor: 5.696

ISI Journal Citation Reports © Ranking: 2013: 22/148 (Chemistry Multidisciplinary)

Online ISSN: 1521-3765

Associated Title(s): Angewandte Chemie International Edition, Chemistry – An Asian Journal, ChemistryOpen, ChemBioChem, ChemCatChem, ChemElectroChem, ChemMedChem, ChemPhysChem, ChemPlusChem, ChemSusChem, European Journal of Inorganic Chemistry, European Journal of Organic Chemistry

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May 23, 2014

New Multichromophoric Ligand for Light Harvesting

New Multichromophoric Ligand for Light Harvesting

Light-harvesting antennae are of great importance for the development of efficient solar cells. Multichromophoric systems capable of harvesting light are of interest as they can be used in multicomponent systems in which the different chromophores are in close contact to favor energy and/or electron transfer, so that the excitation energy can be funneled to a specific acceptor. If one of these chromophores is also a good ligand for metal ions, new interesting properties can arise in a supramolecular system, such as control of the energy/electron transfer processes by changing the metal ion or the ability to generate supramolecular architectures and coordination polymers. To find out more about this subject read the paper by Marc Gingras, Aix-Marseille Université, France, Giacomo Bergamini, University of Bologna, Italy, and co-workers

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Recently Published Articles

  1. Organocatalytic Stereoselective Iodoamination of Alkenes

    Dr. Pushpak Mizar, Alessandra Burrelli, Erika Günther, Martin Söftje, Prof. Dr. Umar Farooq and Prof. Dr. Thomas Wirth

    Article first published online: 22 AUG 2014 | DOI: 10.1002/chem.201404762

    Thumbnail image of graphical abstract

    An unexplored class of chiral thiohydantoins can be used as efficient catalysts for iodoaminations while additives effect the regiochemistry. Also quaternary stereocenters can be easily generated with this metal-free, organocatalytic protocol.

  2. Earth-Abundant Oxygen Evolution Catalysts Coupled onto ZnO Nanowire Arrays for Efficient Photoelectrochemical Water Cleavage

    Chaoran Jiang, Dr. Savio J. A. Moniz, Dr. Majeda Khraisheh and Dr. Junwang Tang

    Article first published online: 22 AUG 2014 | DOI: 10.1002/chem.201403067

    Thumbnail image of graphical abstract

    Efficient water splitting: High performance of 1D ZnO nanowire arrays was achieved through optimization of their length and diameter followed by surface modification with earth-abundant nickel borate (Ni-B) and cobalt phosphate (Co-Pi) oxygen-evolution catalysts. Significantly, Ni-B/ZnO exhibits the lowest onset potential (0.3 V) and highest photocurrent of 1.2 mA cm−2 at 0.9 V vs. RHE (see figure). Furthermore, the stability of ZnO was remarkably enhanced by coating with Ni-B as a protection layer on ZnO.

  3. Aza-Crown Ether Complex Cation Ionic Liquids: Preparation and Applications in Organic Reactions

    Dr. Yingying Song, Chen Cheng and Prof. Huanwang Jing

    Article first published online: 22 AUG 2014 | DOI: 10.1002/chem.201403118

    Thumbnail image of graphical abstract

    Jewel in the crown: Nine new and room-temperature aza-crown ether complex ionic liquids (aCECILs) composed of multiple cations and anions were fabricated through a convenient procedure (see scheme). Some of them were used as catalysts in various organic reactions, such as the cycloaddition reaction of CO2 to propylene oxide, esterification of acetic acid and alcohols, the condensation of aniline and propylene carbonate, and Friedel–Crafts alkylation of indole with aldehydes.

  4. Stereoselective C[BOND]H Borylations of Cyclopropanes and Cyclobutanes with Silica-Supported Monophosphane–Ir Catalysts

    Ryo Murakami, Kiyoshi Tsunoda, Dr. Tomohiro Iwai and Prof. Dr. Masaya Sawamura

    Article first published online: 22 AUG 2014 | DOI: 10.1002/chem.201404362

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    Heteroatom-directed C[BOND]H borylations of small-ring carbocycles, such as cyclopropanes and cyclobutanes, were achieved with silica-supported monophosphane–Ir catalysts (see scheme). Borylation occurred at the C[BOND]H bonds located γ to the directing N or O atoms with exceptional cis stereoselectivity relative to the directing groups.

  5. Enzymatic Desymmetrising Redox Reactions for the Asymmetric Synthesis of Biaryl Atropisomers

    Samantha Staniland, Bo Yuan, Nelson Giménez-Agulló, Dr. Tommaso Marcelli, Dr. Simon C. Willies, Dr. Damian M. Grainger, Prof. Nicholas J. Turner and Prof. Jonathan Clayden

    Article first published online: 22 AUG 2014 | DOI: 10.1002/chem.201404509

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    Atropisomerism: Either enantiomer of atropisomeric biaryl hydroxyaldehydes may be synthesised in enantiomerically enriched form by desymmetrising atropselective enzymatic oxidation (with a galactose oxidase mutant) or reduction (with a ketoreductase; see scheme).

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