期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 695, 期 6, 页码 863-869出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2010.01.009
关键词
BODIPY; Ferrocene; Charge transfer band
资金
- CSIR
- DST
Synthesis, spectral, electrochemical and photophysical properties of four BODIPY-ferrocene conjugates in which one or two ferrocenyl groups were covalently connected either directly to boron-dipyrromethene framework or to meso-phenyl group of boron-dipyrromethene unit are described. The BODIPY-ferrocene conjugates were prepared by adopting different synthetic routes. The absorption studies indicated the presence of charge transfer band in BODIPY-ferrocene conjugates in which the ferrocenyl group(s) were directly connected to boron-dipyrromethene framework. The electrochemical studies on conjugates indicated that ferrocenyl group was difficult to oxidize whereas boron-dipyrromethene unit was easier to reduce. The conjugates were non-fluorescent due to electron transfer from ferrocene to boron-dipyrromethene unit. However, when ferrocene was oxidized to ferrocenium ion with an oxidizing agent, the conjugates exhibited fluorescence with decent quantum yields (0.17-0.31) and lifetimes (3.8-5.2 ns). (C) 2010 Elsevier B.V. All rights reserved.
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