Abstract
A new copper(II) binuclear complex, [Cu(hfac)2]2(IMH)2Ph(OMe)2 ((IMH)2Ph(OMe)2 = 2,5-dimethoxyl-1,4-bis(4′,4′,5′,5′-tetramethylimidazoline-3′-oxide)benzene, hfac = hexafluoroacetonate), bridged by a reduced derivative of a nitronyl nitroxide biradical has been synthesized and characterized by X-ray crystallography. The complex crystallizes in the monoclinic space group P21/n, with a = 10.002(14), b = 19.950(3), c = 14.504(2) Å, β = 108.842(3)° and Z = 2. The structure refined to a final R value of 0.0644. The complex contains two copper(II) ions bridged by a reduced derivative of a nitronyl nitroxide biradical with a Cu ··· Cu separation of 8.430(2) Å.
Acknowledgments
This work was supported by the National Natural Science Foundation of China (Nos 20171025, 29961002 and 20331010) and the Natural Science Foundation of Yunnan Province (No. 1999B0003M).