调控5-π-离域供体-1,3-二(2-吡啶基)苯、相关环金属化铂(II)配合物及甲基化盐的偶极二阶非线性光学性质。

Tuning the dipolar second-order nonlinear optical properties of 5-π-delocalized-donor-1,3-di(2-pyridyl)benzenes, related cyclometallated platinum(ii) complexes and methylated salts.

作者信息

Nisic Filippo, Cariati Elena, Colombo Alessia, Dragonetti Claudia, Fantacci Simona, Garoni Eleonora, Lucenti Elena, Righetto Stefania, Roberto Dominique, Williams J A Gareth

机构信息

Dipartimento di Chimica dell'Università degli Studi di Milano, UdR-INSTM, via Golgi 19, I-20133, Milano, Italy.

Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, I-06213, Perugia, Italy.

出版信息

Dalton Trans. 2017 Jan 24;46(4):1179-1185. doi: 10.1039/c6dt04359c.

DOI:10.1039/c6dt04359c

PMID:28054096

Abstract

The synthesis and characterization of three 5-π-delocalized-donor-1,3-di(2-pyridyl)benzenes is reported along with that of their related cyclometallated platinum(ii) complexes and N,N-dimethylated iodide salts. The second-order nonlinear optical (NLO) properties of all the compounds have been determined by the Electric Field Induced Second Harmonic generation technique, showing how the μβ absolute value of 1,3-di(2-pyridyl)benzenes can be tuned by the nature of the substituent on position 5 of the central benzene ring, and greatly increased by cyclometallation to Pt or by N-methylation.

摘要

报道了三种5-π-离域供体-1,3-二(2-吡啶基)苯及其相关的环金属化铂(II)配合物和N,N-二甲基碘化盐的合成与表征。所有化合物的二阶非线性光学(NLO)性质已通过电场诱导二次谐波产生技术测定，结果表明1,3-二(2-吡啶基)苯的μβ绝对值如何通过中心苯环5位取代基的性质进行调节，以及通过环金属化为铂或N-甲基化可使其大大增加。