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Syntheses, Structures and Terahertz Time-Domain Spectroscopy of Two Diimine-Copper(Ⅰ)-Phosphine Complexes
Author NameAffiliationE-mail
ZHU Ning Department of Chemistry, Capital Normal University, Beijing 100048, China
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China 
 
PAN Xun Department of Chemistry, Capital Normal University, Beijing 100048, China  
LIN Sen Department of Chemistry, Capital Normal University, Beijing 100048, China  
YANG Yu-Ping School of Science, Minzu University of China, Beijing 100081, China  
XIN Xiu-Lan School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China  
LI Zhong-Feng Department of Chemistry, Capital Normal University, Beijing 100048, China  
ZHANG Fan Department of Chemistry, Capital Normal University, Beijing 100048, China 3938@cnu.edu.cn 
JIN Qiong-Hua Department of Chemistry, Capital Normal University, Beijing 100048, China
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China 
jinqh@cnu.edu.cn 
Abstract: Herein, two novel copper(Ⅰ) complexes,[Cu(PPh3)2(dppz)]I (1) and[Cu2(dppm)2(dppz)2]Cl2 (2) (PPh3=triphenylphosphine, dppz=dipyrido[3,2-a:2',3'-c]phenazine, dppm=bis(diphenylphosphino) methane) have been synthesized, and the characterization of the complexes was carried out through single-crystal X-ray diffraction, elemental analysis, IR, 1H/31P NMR spectroscopy, fluorescence spectra and THz time domain spectroscopy (THz-TDS). The results show that 1 is a mononuclear complex. The central Cu(Ⅰ) builds a distorted tetrahedral geometry by coordinating with two phosphine ligands (PPh3) and one chelating N-donor ligand (dppz). Different from 1,2 exhibits a dinuclear structure which was obtained by the reaction of CuCl and dppm with dppz in 1:1:1 molar ratio, where the diphosphine ligand (dppm) was utilized as a bridging ligand coordinating to two copper(Ⅰ) atoms. The luminescent spectra show that the emission mechanism belongs to metal-to-ligand charge transfer (MLCT). At the same time, the terahertz (THz) time-domain spectroscopy was used to represent these two complexes as well as the corresponding ligands.
Keywords: copper(Ⅰ) complex  structures  fluorescence  terahertz (THz) time-domain spectroscopy  dipyrido[3,2-a:2',3'-c]phenazine
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ZHU Ning,PAN Xun,LIN Sen,YANG Yu-Ping,XIN Xiu-Lan,LI Zhong-Feng,ZHANG Fan,JIN Qiong-Hua.Syntheses, Structures and Terahertz Time-Domain Spectroscopy of Two Diimine-Copper(Ⅰ)-Phosphine Complexes[J].Chinese Journal of Inorganic Chemistry,2020,36(1):183-191.
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Chinese Journal of Inorganic Chemistry