Dinuclear Cu(ii) 1,2,3-Triazole-Bridged Complex with Ferromagnetic Coupling
Shi-Qiang Bai A E , Lu Jiang B , Jing-Lin Zuo C , Chun-Hua Yan D and T. S. Andy Hor A B E
+ Author Affiliations
- Author Affiliations
A Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 3 Research Link, 117602, Singapore.
B Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
C State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China.
D Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory on Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
E Corresponding authors. Email: bais@imre.a-star.edu.sg; andyhor@nus.edu.sg
Australian Journal of Chemistry 66(9) 1029-1033 https://doi.org/10.1071/CH13224
Submitted: 30 April 2013 Accepted: 12 June 2013 Published: 16 July 2013
Abstract
A new dinuclear Cu(ii) complex [Cu2Cl4(L1)2] (1) (L1 = 1-(2-picolyl)-4-hexyl-1H-1,2,3-triazole) has been synthesised and characterised by single-crystal X-ray diffraction (XRD) and powder XRD, thermogravimetric analysis, electron paramagnetic resonance spectrum, photoluminescence, and magnetic measurements. Complex 1 shows double 1,2,3-triazoles bridging the dinuclear Cu2N4 moiety, in which the bridging N=N bond indicates basal-apical asymmetric mode with 112.6° torsion angle of Cu–N=N–Cu. Different from most azole-bridged dinuclear Cu(ii) with antiferromagnetic couplings, complex 1 shows an intramolecular weak ferromagnetic interaction (J = 0.91 cm–1).
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