D-π-A型三联吡啶衍生物的合成及光学性质

Syntheses and Optical Properties of Two Novel Terpyridine Derivatives

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(Ф)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 calculations were consistent with the experimental results.