Photophysical study of the aggregation of naphthyl-, anthryl- and pyrenyl-adamantanebisurea derivatives
作者:Vesna Blažek、Kata Mlinarić-Majerski、Wenwu Qin、Nikola Basarić
DOI:10.1016/j.jphotochem.2011.12.005
日期:2012.2
Adamantaneurea derivatives 1–13 were synthesized and their photophysical properties investigated. The compounds 1–13 are comprised of a rigid adamantane moiety, 1 or 2 urea groups and different chromophores, as well as methylene spacer between the adamantane and the urea and/or between the urea and the chromophores. Fluorescence quantum yields and singlet excited state lifetimes were measured in CH3CN
Adamantaneurea衍生物1 - 13的合成和它们的光物理性质的影响。化合物1 - 13是由刚性的金刚烷部分的,1或2个脲基团和发色团的不同,以及金刚烷和脲之间和/或尿素和发色团之间的亚甲基间隔基。在CH 3 CN和DMSO中测量了荧光量子产率和单线激发态寿命。发现在金刚烷和尿素之间具有亚甲基间隔基的分子在CH 3 CN中聚集,而在DMSO中未观察到聚集。9-氨基蒽衍生物10的聚集趋势最高在两种溶剂中聚集的pyr衍生物13。由于脲之间的分子间氢键和芳族发色团的π,π堆积,可能发生聚集。芘13可能引起的准分子激光和分子间的聚集。