Tridurylboranes extended by three arylethynyl groups as a new family of boron-based π-electron systems
S Yamaguchi, T Shirasaka, K Tamao
Index: Yamaguchi, Shigehiro; Shirasaka, Toshiaki; Tamao, Kohei Organic Letters, 2000 , vol. 2, # 26 p. 4129 - 4132
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Citation Number: 137
Abstract
A series of tris (phenylethynylduryl) boranes (R-C6H4-C⋮ C-duryl) 3B with various substituents R have been prepared as air-stable solids owing to the steric protection of the boron atom by the three bulky duryl groups. These compounds show unique photophysical properties due to the pπ-π* conjugation through the p-orbital on the boron atom. In particular, a push-pull type derivative with R= NMe2 exhibits a significant solvatochromism ...
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