作者:Masaki Matsui、Rie Ikeda、Yasuhiro Kubota、Kazumasa Funabiki
DOI:10.1016/j.tetlet.2009.06.095
日期:2009.9
The solid-state fluorescence of 2-amino-, 2-ethylamino, 2-diethylamino-, and 2.7-bis(diethylamino)perfluorophenazines was examined. They showed their fluorescence maxima in the range of 584-637 nm. The solid-state fluorescence quantum yield of 2-diethylamino derivative was highest among these derivatives, there being 0.22. X-ray crystallographic analysis suggests that the 2-diethylamino derivative has no strong intermolecular interactions among adjacent molecules to show intense fluorescence, whereas the other derivatives have network NH/F hydrogen, pi-pi, and CH/F interactions to reduce solid-state fluorescence intensity. (C) 2009 Published by Elsevier Ltd.