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Patrick J. M. Stals Maarten M. J. Smulders Rafael Martín‐Rapún Dr. Anja R. A. Palmans Dr. E. W. Meijer Prof. Dr. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(9):2071-2080
Molecular organization : Chiral benzene tricarboxamides with methyl substituents at defined positions self‐assemble into supramolecular polymers of preferred helicity by three‐fold α‐helical‐type hydrogen bonding. The odd–even effect is operative and all derivatives are liquid crystalline showing a Colho phase (see figure).
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Masayuki Suda Yasuaki Einaga Prof. 《Angewandte Chemie (International ed. in English)》2009,48(10):1754-1757
Getting organized : Assemblies of ferromagnetic FePt nanoparticles were generated with large perpendicular magnetic anisotropy by a magnetic‐field‐assisted layer‐by‐layer method, and subsequently layer‐by‐layer films consisting of L10‐FePt nanoparticles and organic polymers were prepared. These films are phototunable when photochromic molecules are used as polymer layers.
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Toshihide Maki Dr. Shinya Iikawa Gen Mogami Hitomi Harasawa Yoshihiro Matsumura Prof. Dr. Osamu Onomura Prof. Dr. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(21):5364-5370
Get selective! A selective oxidation of 1,2‐diols to α‐hydroxyketones catalyzed by organotin compounds has been developed (see scheme). Invaluable chemo‐ and stereoselectivity were found in the reaction. The catalytic system has been achieved by electrochemical and chemical oxidation.
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Yesica Di Iorio Marta A. Brusa Dr. A. Feldhoff Dr. María A. Grela Dr. 《Chemphyschem》2009,10(7):1077-1083
Reduction of alizarin molecules coupled to TiO2 nanoparticles occurs on UV irradiation in the presence of a sacrificial electron donor. Reduction is mediated by conduction‐band electrons and yields a 1,2,9,10‐tetrahydroxyanthracene species which remains coupled to the TiO2 nanoparticles (see figure). The process can be reversed by addition of an acceptor (i.e. oxygen).
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Vincent Lavallo C. Adam Dyker Dr. Bruno Donnadieu Guy Bertrand Prof. 《Angewandte Chemie (International ed. in English)》2009,48(9):1540-1542
The true ground state of 1 is a matter of debate, but for clarity and convenience the allene resonance form 1 a , is the most appropriate. The arguments for aromaticity made by Christl and Engels are shown to be incorrect.
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David Tejedor Dr. Sara López‐Tosco Fabio Cruz‐Acosta Gabriela Méndez‐Abt Fernando García‐Tellado Dr. 《Angewandte Chemie (International ed. in English)》2009,48(12):2090-2098
Three that matter : Metal acetylides from alkyl propiolates allow C3 homologations with transference of their versatile reactivity profile to products that can then react without further elaboration. Metal‐free acetylides, which are generated by the action of a good nucleophile on the alkyl propiolate, react with suitable electrophiles through different domino reactions to generate skeletal diversity.
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Marco d'Ischia Prof. Alessandra Napolitano Prof. Alessandro Pezzella Dr. Paul Meredith Prof. Tadeusz Sarna Prof. 《Angewandte Chemie (International ed. in English)》2009,48(22):3914-3921
A black whole : The black insoluble biopolymer eumelanin is prepared through the oxidative polymerization of 5,6‐dihydroxyindoles (see scheme). It has a largely unknown heterogeneous structure and unique optoelectronic properties. Current structural models are presented and possible applications are discussed.
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Sandro Pagano Giuseppe Montana Claudia Wickleder Prof. Dr. Wolfgang Schnick Prof. Dr. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(25):6186-6193
Shine a light with cyanates : A novel approach for the synthesis of urea complexes and homoleptic cyanates of alkaline earth metals and europium is described. The compounds have been fully characterized, including their magnetism and temperature‐dependent luminescence properties (see graphic).
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Anthony J. Zucchero Rebecca A. Shiels Psaras L. McGrier M. Alicia To Christopher W. Jones Prof. Uwe H. F. Bunz Prof. 《化学:亚洲杂志》2009,4(2):262-269
Silica scaffolding : By employing functionalized mesoporous SBA‐15 silica, novel fluorescent cruciform‐silica hybrid materials are generated which preserve the desirable solution properties of cruciforms in the solid state for potential use in sensory schemes.
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Soluble InP and GaP Nanowires: Self‐Seeded,Solution–Liquid–Solid Synthesis and Electrical Properties
Zhaoping Liu Kai Sun Dr. Wen‐Bin Jian Prof. Dr. Dan Xu Yen‐Fu Lin Jiye Fang Prof. Dr. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(18):4546-4552
A facile, self‐seeded , solution–liquid–solid growth of soluble InP and GaP nanowires with a very low amount of native point defects with respect to the carrier concentrations have been synthesized (see scheme) and characterized. They are potentially promising building blocks in optoelectronic applications.
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Nicolas Mackiewicz Dr. Jacques A. Delaire Prof. A. William Rutherford Dr. Eric Doris Dr. Charles Mioskowski Dr. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(15):3882-3888
Change happens : Acridine–carbon nanotube nanohybrids were built (see figure) and their photoinduced electron‐transfer properties investigated, showing variable behaviour depending on the acridine partner.