Journal of the American Chemical Society
COMMUNICATION
In conclusion, we have introduced a versatile method for the
preparation of well-defined conjugated organoborane oligomers.
Electrochemical, UVꢀvis, and fluorescence studies, as well as
DFT calculations, provide important insights into the effect of
chain extension of conjugated organic π-systems via tricoordi-
nate boron moieties. Our results are of direct relevance to
potential applications of conjugated organoborane oligomers
and polymers in optoelectronic devices. Moreover, the prepara-
tion of well-defined conjugated organoborane oligomers is
expected to allow us to shed some light on the origin of signal
amplification effects6,7 reported for the fluorescent sensing of
anions with conjugated organoborane polymers. Detailed studies
in this regard are in progress.
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’ ASSOCIATED CONTENT
S
Supporting Information. Experimental procedures and
b
data; complete ref 23. This material is available free of charge via
’ AUTHOR INFORMATION
Corresponding Author
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We thank the NSF (CHE-0809642, CRIF-0443538) for
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