作者:V. Yu. Gusev、A. V. Radushev、P. A. Slepukhin、Zh. A. Vnutskikh
DOI:10.1134/s0036023608010129
日期:2008.1
The copper(II) complexes with N,N-diethylbenzhydrazide, [Cu(C(6)H(5)CONHN(C(2)H(5))(2))]Cl(2) (I) and Cu(C(6)H(5)CONN(C(2)H(5))(2))(2) (II), have been studied by X-ray diffraction analysis. In the both compounds, the reactant acts as a bidentate (O, N(2)) ligand, forming five-membered chelate rings with copper. In cationic complex I, the O -> Cu and N -> Cu bond lengths are 1.954(2) and 2.070(3) A..., respectively, and the O(1)CuN(2) chelate angle is 81.89(10A degrees. The Cl(-) ions are in the coordination sphere of copper (Cu-Cl, 2.1974(11) and 2.2178(10) A...). The chelate ring has an envelope conformation with the copper atom in the flap position. The coordination polyhedron of the copper atom is a strongly distorted tetrahedron. Neutral complex II is an inner complex salt. The reactant forms with copper two planar chelate rings. The Cu-O and N -> Cu bond lengths are 1.8901(9) and 2.0175(11) A..., respectively, and the O(1)CuN(2) chelate cycle is 83.70(4)A degrees. Complex II is planar, and the coordination polygon of the copper atom is a parallelogram. The thermal stability of complexes I and II has been studied.