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Synthesis of boron-dipyrromethene-ferrocene conjugates

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Title Synthesis of boron-dipyrromethene-ferrocene conjugates
 
Creator RAO, MR
KUMAR, KVP
RAVIKANTH, M
 
Subject benzo crown-ether
redox
dyes
complexes
molecules
switches
bodipy
bodipy
ferrocene
charge transfer band
 
Description 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). .
 
Publisher ELSEVIER SCIENCE SA
 
Date 2011-07-28T23:14:05Z
2011-12-26T12:58:44Z
2011-12-27T05:49:10Z
2011-07-28T23:14:05Z
2011-12-26T12:58:44Z
2011-12-27T05:49:10Z
2010
 
Type Article
 
Identifier JOURNAL OF ORGANOMETALLIC CHEMISTRY, 695(6), 863-869
0022-328X
http://dx.doi.org/10.1016/j.jorganchem.2010.01.009
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7522
http://hdl.handle.net/10054/7522
 
Language en