Reversible Intramolecular C− C Bond Formation/Breaking and Color Switching Mediated by a N, C-Chelate in (2-ph-py) BMes2 and (5-BMes2-2-ph-py) BMes2

…, H Amarne, SB Zhao, TM McCormick…

Index: Rao, Ying-Li; Amarne, Hazem; Zhao, Shu-Bin; McCormick, Theresa M.; Martic, Sanela; et al. Journal of the American Chemical Society, 2008 , vol. 130, p. 12898 - 12900

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Citation Number: 96

Abstract

A diboron compound with both 3-coordinate boron and 4-coordinate boron centers,(5- BMes2-2-ph-py) BMes2 (1) and its monoboron analogue,(2-ph-py) BMes2 (2) have been synthesized. Both compounds are luminescent but have a high sensitivity toward light. UV and ambient light cause both compounds to isomerize to 1a and 2a, respectively, via the formation of a C− C bond between a mesityl and the phenyl group, accompanied by a ...

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