Synthesis and photophysical properties of a new two-photon absorbing chromophor containing imidazo[4,5-f][1,10]phenanthroline

被引：15
作者：
Zhang, Hai-Guang [1 ]
Tao, Xu-Tang [1 ]
Chen, Kao-Shan [2 ]
Yuan, Chun-Xue [1 ]
Jiang, Min-Hua [1 ]
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[2] Shandong Univ, Sch Life Sci, Jinan 250100, Peoples R China
来源：
SYNTHETIC METALS | 2011年 / 161卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
Imidazo[4,5-f][1,10]phenanthroline; Two-photon absorption; Two-photon fluorescent sensor; EXCITATION CROSS-SECTIONS; DNA-BINDING PROPERTIES; RUTHENIUM(II) COMPLEXES; FLUORESCENCE; SENSORS; FLUOROPHORES; MOLECULES; DESIGN; DYES;
D O I：
10.1016/j.synthmet.2010.12.003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new two-photon absorption compound, 2-{4-[(dicyanomethylidene-5,5-dimethylcyclohexl)vinyl]phenyl}imidazo[4,5-f][1,10]phenanthroline (DDVPIP), was synthesized and characterized. Its two-photon absorption (TPA) cross-section is obtained as 62 GM (1 GM = 1 x 10(-50) cm(4) photon(-1) molecule(-1)) with 200 fs laser pulses at 800 nm. 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. (C) 2010 Published by Elsevier B.V.
引用
收藏
页码：354 / 359
页数：6
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