meso-Tris(oligo-2,5-thienylene)-substituted subporphyrins exhibit remarkably red-shifted and intensified absorption bands with increasing number of thienyl subunits. A dimeric subporphyrin obtained from homocoupling of a monobrominated tris(2-thienyl)-substituted subporphyrin exhibits a split Soret-like band due to the exciton coupling.
Synthesis and Properties of Boron(III)-Coordinated Subbacteriochlorins
作者:Shin-ya Hayashi、Eiji Tsurumaki、Yasuhide Inokuma、Pyosang Kim、Young Mo Sung、Dongho Kim、Atsuhiro Osuka
DOI:10.1021/ja200669a
日期:2011.3.30
Subbacteriochlorins, which were prepared via hydrogenation of subporphyrins with Raney nickel, are modestly aromatic due to 14 pi-diazaannulenic circuit and exhibit characteristic blue-shifted Soret-like bands, intensified fluorescence spectra, and high oxidation potentials.