Synthesis and crystal structures of two azido-bridged copper(II) complexes with schiff bases |
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Authors: | L. H. Wang |
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Affiliation: | 1. Key Laboratory for Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, Hubei Province, South-Central University for Nationalities, Wuhan, 430074, PR. China
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Abstract: | Two new end-on azido-bridged dinuclear copper(II) complexes with the formula [Cu(μ1,1-N3)2(IEP)2] (I) and [Cu(μ1,1-N3)2(EMP)2] (II), where IEP and EMP are the deprotonated forms of 2-[1-(2-isopropylaminoethylimino)ethyl]phenol and 2-ethoxy-6-[(2-methylaminoeth-ylimino)methyl]phenol, respectively, were synthesized. Both complexes were characterized by elemental analyses and IR spectra. The crystal structures were determined by the X-ray diffraction. The crystal of I is monoclinic: space group P21/c, a = 9.662(2), b = 15.282(3), c = 10.639(2) Å, β = 115.418(10)°, V = 1418.9(5) Å3, Z = 2. The crystal of II is monoclinic: space group P21/n, a = 12.588(2), b = 7.705(1), c = 14.481(2), β = 91.736(5)°, V = 1403.9(2) Å3, Z = 2. The two Cu atoms in each complex are bridged by two end-on azide groups. Each Cu atom is in a square pyramidal coordination. The Cu…Cu distances are 3.230(2) Å in I and 3.150(2) Å in II. |
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