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Indexed by:期刊论文
First Author:Gai, Xu-Qiao
Correspondence Author:Ni, J (reprint author), Dalian Univ Technol, Coll Chem, Dalian 116024, Peoples R China.; Ni, J (reprint author), Chinese Acad Sci, Fujian Inst Res Struct Mat, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China.
Co-author:Zhang, Xiao-Xin,Kang, Jia-Jia,Xu, Liang,Zhang, Jian-Jun,Ni, Jun
Date of Publication:2016-05-01
Journal:ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
Included Journals:SCIE
Volume:642
Issue:8
Page Number:597-602
ISSN No.:0044-2313
Key Words:Solvate molecules; Platinum; Luminescence; Pt-Pt contact; Packing structure
Abstract: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.
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