标题:Synthesis and photophysical properties of a new two-photon absorbing chromophor containing imidazo[4,5-f][1,10]phenanthroline
作者:Hai-Guang Zhang;Xu-Tang Tao;Kao-Shan Chen
作者机构:State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China;State Key Laboratory of Crystal Materials, S
来源:Synthetic Metals
出版年:2011
期:3
页码:354-359
关键词:Imidazo[4;5-f][1;10]phenanthroline;Two-photon absorption;Two-photon fluorescent sensor
摘要:A new two-photon absorption compound, 2-{4-[(dicyanomethylidene-5,5-dimethylcyclohexl)vinyl]phenyl}irnidazo[4,5-f|[1,10]phenanthroline (DDVPIP), was synthesized and characterized. Its two-photon absorption (TPA) cross-section is obtained as 62 GM (1GM = 1 x 10~(-50) cm~4photon~(-1) molecule~(-1)) with 200fs laser pulses at 800nm. The one-photon excited fluorescence (OPEF) and two-photon excited fluorescence (TPEF) of DDVPIP are sensitive to the acid/base of the solution, which are enhanced in the basic solution but weakened in acidic solution. Charge-transfer (CT) states of DDVPIP were calculated through theory methods to explain its acid-base-sensitive fluorescent properties.
资源类型:期刊论文
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