Distinct optoelectronic properties of four-coordinate and five-coordinate Zn(II) complexes with chiral polypyridine ligands

被引：6

作者：

Zhang, Xiao-Peng ^{[1
,2
,3
]}

Qi, Xiao-Wei ^{[1
,2
]}

Zhang, Da-Shuai ^{[1
,2
]}

Zhu, Lin-Hua ^{[1
,2
]}

Wang, Xiang-Hui ^{[1
,2
]}

Shi, Zai-Feng ^{[1
,2
]}

Lin, Qiang ^{[1
,2
]}

机构：

[1] Hainan Normal Univ, Coll Chem & Chem Engn, Haikou 571158, Peoples R China

[2] Key Lab Water Pollut Treatment & Resource Reuse H, Haikou 571158, Peoples R China

[3] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Nanjing 210093, Jiangsu, Peoples R China

来源：

POLYHEDRON | 2017年 / 126卷

基金：

中国国家自然科学基金;

关键词：

Zinc(II) complexes; Chiroptical properties; Luminescence; Ferroelectricity; Nonlinear optics; PLATINUM(II) COMPLEXES; PHOTOLUMINESCENCE; LIGHT; LUMINESCENT; TERPYRIDINE; TRANSITION;

D O I：

10.1016/j.poly.2017.01.020

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two pairs of chiral Zn(II) complexes, Zn((-)-L-1)Cl-2 ((-)-1) and Zn((+)-L-1)Cl-2 ((+)-1), Zn((-)-L-2)Cl-2 ((-)-2) and Zn((+)-L-2)Cl-2 ((+)-2), [(-)-L-1 = ()-4,5-pinene bipyridine, (+)-L-1= (+)-4,5-pinene bipyridine,(-)-L-2 = (-)-`dipineno-'[4,5:4 '',5 '']-fused 2,2':6',2 ''-terpyridine, (+)-L-2 = (+)-'clipineno'-[4,5:4 '',5 '']-fused 2,2 '':6 ',2 ''-terpyridine] were facilely prepared by the complexation of ligand L with chiral polypyridine ligands with ZnCl2. Their structures were characterized by single crystal X-ray diffraction and electronic circular dichroism (CD) spectra. The central Zn(II) nucleus in (-)-1 is surrounded in a four-coordinate tetrahedral geometry, while the coordination polyhedron of the Zn(II) ion in (-)-2 can be described as a significantly distorted square-pyramidal. Due to different coordination modes and crystal space groups, complexes (-)-1 and (-)-2 show distinct ferroelectric behaviors and nonlinear optical properties, while both of them are emissive at room temperature, which may give a guidance for designing molecule -based multifunctional materials with diverse coordination configurations. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：111 / 119

页数：9

共 51 条

[1] Dichlorido(6,6′-dimethyl-2,2′-bipyridine-κ2N,N′)zinc(II) [J].