期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 690, 期 21-22, 页码 4982-4988出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2005.07.049
关键词
chalcogenapyran; Fischer type carbene complexes; NLO properties
A new class of push-pull molecules bearing gamma-methylene chalcogenapyran and benzopyran nucleus as proaromatic donors and methoxypentacarbonyltungstene carbene fragment as acceptors is described. N.L.O. properties (as mu beta by EFISH) of these complexes have been investigated. The influence of the unsaturated chain length, of the presence of the fused aromatic ring and of the chalcogen atom on the first hyperpolarizability values are shown. (c) 2005 Elsevier B.V. All rights reserved.
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