Synthesis, structure and spectroscopic characteristics of 2′-boryl-4′-dimethylaminochalcones. Effect of an intramolecular boron-oxygen coordinate bond to the conjugated system
2′-Diethylboryl-4″-dimethylaminochalcone (1) and the related compounds (4)-(7) bearing a dioxyboryl group in the 2′-position were synthesized, and the effect of the intramolecular boron-oxygen coordinate bond on the spectroscopic characteristics of 4″-dimethylaminochalcone chromophore was examined by comparison with 4″-dimethylaminochalcone (2) using UV/VIS and fluorescence spectra.
Structure and spectroscopic characteristics of 2'-diethylboryl-4''- dimethylaminochalcone bearing an intramolecular boron-oxygen coordinate bond
How formation of an intramolecular coordinate bond affects the molecular structure was examined in the structural comparison of 2'-diethylboryl-4''- dimethylaminochalcone (1) and 2'-ethylenedioxyboryl-4''-dimethylaminochalcone (2) with chloro-{2-[(4-dimethylaminostyryl) carbonyl] phenyl} (4-methyl- phenyl)] bismuthane (3) and 4''-dimethylaminochalcone (4).
Murafuji,Sugihara,Moriya,Mikata,Yano
p. 683 - 685
(2008/10/08)
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