Effects of Different Amount of Crystalline Solvate Molecules on Solid Structures and Photophysical Properties of a Platinum(II) Moiety with 4,4′-Dibromo-2,2′-Bipyridine Ligand

被引：2

作者：

Gai, Xu-Qiao ^{[1
]}

Zhang, Xiao-Xin ^{[1
]}

Kang, Jia-Jia ^{[1
]}

Xu, Liang ^{[1
]}

Zhang, Jian-Jun ^{[1
]}

Ni, Jun ^{[1
,2
]}

机构：

[1] Dalian Univ Technol, Coll Chem, Dalian 116024, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Mat, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2016年 / 642卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Solvate molecules; Platinum; Luminescence; Pt-Pt contact; Packing structure; AB-INITIO PSEUDOPOTENTIALS; CLOSED-SHELL ATTRACTION; RESPONSIVE LUMINESCENCE; EXCITATION-ENERGIES; COMPLEXES; VAPOCHROMISM; CHEMISTRY; APPROXIMATION; POLYMORPH; COMPOUND;

D O I：

10.1002/zaac.201600073

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A platinum(II) complex Pt(DiBrbpy)Cl-2 (1) based on 4,4'-dibromo-2,2'-bipyridine ligand was synthesized and characterized. Interestingly, two solvated phases of 1 with different amounts of crystalline CH2Cl2 molecules, 1.1/3(CH2Cl2) (yellow) and 1.3/2(CH2Cl2) (red), were obtained. In the solid state, 1.1/3(CH2Cl2) exhibits a 3D supramolecular structure based on Pt(DiBrbpy)Cl-2 monomer and emits a weak yellow luminescence at 541 nm (579, sh). In contrast, 1.3/2(CH2Cl2) displays a 2D layer structure based on Pt(DiBrbpy)Cl-2 dimeric units and has a strong red luminescence centered at 624 nm. The results show that crystalline solvate molecule amount can not only influence the packing structures but also photophysical properties of the platinum moiety in solid state. Furthermore, the absorption and luminescence spectra of both phases were studied by TD-DFT calculations.

引用

页码：597 / 602

页数：6

共 44 条

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