Synthesis, characterization, and spectrophotometric studies of novel fluorescent arachno decaborane and nonaborane clusters containing aza-distyrylbenzene derivatives
作者:Afaf R. Genady、Tarek A. Fayed、Detlef Gabel
DOI:10.1016/j.jorganchem.2007.12.028
日期:2008.3
between decaborane or nonaborane arachno-type unit and the bonded pyridine units has been investigated by UV–Vis spectroscopy and by AM1 molecular orbital calculations. The resulting compounds undergo trans–cis photoisomerization upon excitation. The connection of boron clusters to PhQ and PhPy led to enhancing of the photoreactivity and decreasing of the fluorescence quantum yield of the products.
二苯乙烯基苯的两个氮杂类似物,即:含蛛网膜的1,4-双[β-(4-喹啉基)乙烯基]苯(PhQ)和1,4-双[β-(4-吡啶基)乙烯基]苯(PhPy)-十硼烷或蛛网膜下腔-nonaborane簇已被分离:6,9-(PHQ)2 -蛛网膜下腔-B 10 ħ 12(1),ñ,ñ ' -双[9-ME 2 S-蛛网膜下腔-B 10 ħ 12 -6基] PHQ(2),6,9-(PhPy)2 -蛛网膜下腔-B 10 ħ 12(3),ñ,N'-双[(9-Me 2 S)-芳族-B 10 H 12 -6-yl] PhPy(4),N,N'-双[芳族-B 9 H 13 -4-yl] PhQ(5),4-PhQ-芳族-B 9 H 13(6),N,N'-双[ arachno -B 9 H 13 -4-yl] PhPy(7)和4-PhPy-芳族-B 9 H 13(8)。很容易从弱配位体的置换反应(SME制备的这些硼化化合物