期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 653, 期 1-2, 页码 223-228出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0022-328X(02)01152-X
关键词
silole; cross-coupling reaction; reductive cyclization; UV-vis absorption spectra; fluorescence spectra; organic electroluminescent devices
Various types of silole-containing pi-conjugated oligomers and polymers, including the silole-pyrrole cooligomers, silole-diethynylarene copolymers, silole-arene alternating copolymers such as the silole-thiophene copolymer, and 2,5-diarylsiloles, have been synthesized by the combination of the new intramolecular reductive cyclization of bis(phenylethynyl)silanes with the well-established transition metal complex-catalyzed cross-coupling reactions. The silole-based pi-electron systems thus prepared have unique photophysical properties due to the unusual electronic structure of the silole ring. Some of them have been applied as new materials for organic electroluminescent devices. (C) 2002 Elsevier Science B.V. All rights reserved.
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