Citation: Xin ZHANG, Xiao-Feng JIANG, Yun-Zhou CHEN, Yun-Feng CHEN, Li-Li DING, Li-Hui JIA. A Double Azole-bridged Dinuclear Copper(Ⅱ) Complex Containing 4-Pyridyl-NH-1, 2, 3-triazoles: Synthesis, Structure and Magnetism[J]. Chinese Journal of Structural Chemistry, ;2020, 39(5): 918-926. doi: 10.14102/j.cnki.0254-5861.2011-2595 shu

A Double Azole-bridged Dinuclear Copper(Ⅱ) Complex Containing 4-Pyridyl-NH-1, 2, 3-triazoles: Synthesis, Structure and Magnetism

Xin ZHANG ^a ,
Xiao-Feng JIANG ^a ,
Yun-Zhou CHEN ^a ,
Yun-Feng CHEN ^a ,
Li-Li DING ^a,, ,
Li-Hui JIA ^{a, b,,}

a.
Key Laboratory for Green Chemistry Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
b.
Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Function Molecules, Hubei University, Wuhan 430062, China

Corresponding author: Li-Li DING, 7384419@qq.com Li-Hui JIA, jialihui715@wit.edu.cn
Received Date: 5 September 2019
Accepted Date: 21 November 2019

Fund Project: the National Natural Science Foundation of China 21002076the National Natural Science Foundation of China 21441007the Open Fund Project of Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Function Molecules, Hubei University KLSAOFM1709the Graduate Innovative Fund of Wuhan Institute of Technology CX2018150the Graduate Innovative Fund of Wuhan Institute of Technology CX2018132

Figures(4)

A new dinuclear copper(Ⅱ) compound [Cu₂(CH₃COO)₂(L)₂(H₂O)₂]·4H₂O (1, HL = 4-pyridyl-NH-1, 2, 3-triazole) has been synthesized and characterized. Single-crystal X-ray diffraction showed that complex 1 crystallizes in monoclinic space group P2₁/c with a = 0.8427(1), b = 1.0981(1), c = 1.3610(1) nm, β = 93.364(4)°, V = 1.2573(1) nm³, M_r = 643.56, Z = 2, D_c = 1.700 g/cm³, μ = 1.760 mm^-1, R = 0.0376, wR = 0.0981, and possesses a planar Cu₂N₄ six-membered ring, in which both Cu(Ⅱ) ions are bridged by two 1, 2, 3-triazole ligands. The neighboring dinuclear molecules are bound by strong intermolecular hydrogen bonds to create 1-D chains expanding along the b axis, which further form a 3-D supramolecular framework. Magnetic susceptibility measurement indicated the presence of weak antiferromagnetic interactions within the complex. The best fit using spin Hamiltonian yields the magnetic coupling constant J = –14.82 cm^-1 above 30 K. The magnetic data are compared to those obtained for related double diazine bridged dinuclear copper(Ⅱ) complexes and magneto-structural correlations are discussed.
- dinuclear Cu(Ⅱ) complexes,
- 4-pyridyl-NH-1,2,3-triazole,
- magnetic properties,
- magneto-structural correlation
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