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Citation: WU Wen-Shi, FENG Yun-Long, LAN Xin-Ren, HUAUG Ting-Ting. Crystal Structure and Fluorescence Character of Copper Complex Containing N,N'-Salicylidene pyridine formylhydrazide[J]. Chinese Journal of Applied Chemistry, ;2004, 21(2): 135-139. shu

Crystal Structure and Fluorescence Character of Copper Complex Containing N,N'-Salicylidene pyridine formylhydrazide

1.
a College of Material, Huaqiao University, Quanzhou 362011;
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b Institute of Physical Chemistry, Zhejiang Normal University, Jinhua

Corresponding author: WU Wen-Shi,
Received Date: 22 May 2003
Available Online: 1 November 2003
Fund Project: 福建省自然科学基金资助项目(E0210026) (E0210026)

The title complex [Cu₂(sphz)(DMF)₃H₂O]·(ClO₄)₂C₂₂H₃₂Cl₂Cu₂N₆O₁₄, where H₂sphz is N,N'-salicylidene pyridine formylhydrazide, has been synthesized from H₂sphz and copper perchlorate in a mixture of DMF and methanol. Crystal data of the complex were found:space group P2₁/c, a=1.08120(3)nm,b=2.57187(7)nm,c=1.1777(3)nm,β=104.1472(5)°,V=3.1757(2)nm³,Z=4,D_c=1.679Mg/m³,F(000)=1640,μ(MoKα)=1.582mm^-1,R=0.0358 for 5 234 observed reflections(I≥2σ(I)), R_w=0.100 7, GOF=1.076. One copper(Ⅱ) ion in complex is coordinated with a pyridine nitrogen atom, a diazine nitrogen atom, two DMF oxygen atoms and a water oxygen atom, forming a distorted square pyramidal arrangement of N₂O₃. Another copper(Ⅱ) ion in complex is coordinated with a diazine nitrogen atom, a carbonyl oxygen atom, a phenoxy oxygen atom and a DMF oxygen atom, forming a distorted square arrangement of NO₃. Every two molecules in the crystal are linked in pairs through the intermolecular hydrogen bonding. ν(C=O) and ν(C=N) are shifted to lower frequencies in IR spectra; π-π ^*charge transitions and d-π ^* charge-transitions are observed in their electronic spectra. The emission lines(λ_exc=310 nm) are shifted to higher frequencies in fluorescence spectra.
- crystal structure,
- N,N'-salicylidene pyridine formylhydrazide,
- copper complex
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