Citation: Hai Guang Zhang, Xu Tang Tao, Kao Shan Chen, Chun Xue Yuan, Shi Na Yan, Min Hua Jiang. Synthesis and characterization of a new chromophor with acid/base-sensitive fluorescence emission[J]. Chinese Chemical Letters, ;2011, 22(9): 1051-1054. doi: 10.1016/j.cclet.2011.03.013
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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. The one-photon excited fluorescence (OPRF) and two-photon excited fluorescence (TPEF) of DDVPIP are sensitive to the acid/base of the solution, which are enhanced in 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.
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