| Abstrakt: |
Two copper (II) α-Methacrylate complexes with benzimidazole, Cu[CH2 = C(CH3)-COO]2 (C3H6N2)2(1) and Cu2[CH2 = C(CH1)-COO]2(C3H6N2)2(2), have been prepared and characterized by elemental analyses, IR and electronic reflectance spectroscopies. ’The single crystal X-ray diffraction study of the two complexes shows that complex 1 has a square planar configuration, while complex 2 has a binuclear cage structure. The crystal structural analyses show that both complexes 1 and 2 are monoclinic. with space group p21/c, a = 0.924 16(8) nm, b = 1.233 02(13) nm, c = 0.989 1(3) nm, β = 91.912 (13), D c = 1.386 g/cm3, Z=2, R = 0.033 9 for the former; and a = 0.905 7(2) nm, b = 2.252 1(5) nm, c = 1.623 5(4) nm, β = 90.11 (2), D c = 1.411 g/cm3, Z = 4, R = 0.056 8, Cu-Cu = 0.266 21 nm for tin latter. Different structural types of complexes 1 and 2 were produced simultaneously in the reaction of copper (II) α-methacrylate with benzimidazole in methanol solution. ’The forming mechanism of the complexes has been summanzed. [ABSTRACT FROM AUTHOR] |
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