D-π-A 型三联吡啶衍生物的合成及光学性质

摘要

以4’-(4-甲苯基)-2,2’：6’,2″-三联吡啶为电子受体(A)基元,通过 Wittig 反应引入电子给体(D)基元,合成了2个新的 D-π-A 型三联吡啶衍生物；研究了其单、双光子吸收荧光特性,并通过量子化学计算从结构角度进行了解释.目标产物的荧光量子产率(Φ)最高达到0.45,双光子吸收截面(δ2)最大达406 GM.%Two novel D-π-A type terpyridine derivatives with two-photon properties were synthesized using 2,2’ : 6’,2″-terpyridine as the acceptor(A) and other functional groups as the donor(D). For the two D-π-A type terpyridine derivatives, their linear absorption, single- and two-photon properties were measured. These results show that the target compounds have good fluorescence with the fluorescence quantum yield(Φ)up to 0. 45 and the maximal two-photon absorption cross section(δ2 ) up to 406 GM at 830 nm. Theoretical calcula-tions were consistent with the experimental results.