Synthesis and crystal structure of Cu(I) π-complexes with N-allyl-5-amino-1-phenyl-1H-1,2,3-triazole-4-carboxamide [Cu(C12H13N5O)(NO3)] · 0.5H2O and [Cu(C12H13N5O)(CF3COOH)]
作者:Yu. I. Slyvka、A. V. Pavlyuk、B. R. Ardan、N. T. Pokhodilo、E. A. Goreshnik、P. Yu. Demchenko
DOI:10.1134/s0036023612060216
日期:2012.6
Copper(I) pi-complexes of the compositions [Cu(C12H13N5O)(NO3)] center dot 0.5H(2)O (1) and [Cu(C12H13N5O)(CF3COO)] (2) (C12H13N5O is N-allyl-5-amino-1-phenyl-1H-1,2,3-triazole-4-carboxamide)were obtained by alternating-current electrochemical synthesis, and their crystal structures were studied by X-ray crystallography. Crystals of the compounds are monoclinic, space group C2/c with the unit cell parameters a = 21.3976(15) angstrom, b = 8.0335(4) angstrom, c = 18.6027(13) angstrom, beta = 114.422(2)degrees, V = 2911.6(3) angstrom(3), Z = 8 for 1; and a = 18.3578(18) angstrom, b = 9.8700(10) angstrom, c = 20.9094(18) angstrom, beta = 106.883(3)degrees, V = 3625.3(6) angstrom(3), Z = 8 for 2. In both structures, N-allyl-5-amino-1-phenyl-1H-1,2,3-triazole-4-carboxamide acts as a bridging tridentate chelating ligand and forms with copper(I) atoms infinite chains containing [CuC4NO] seven-membered rings. The chains are linked to form a three-dimensional framework due to hydrogen bonds (N)H center dot center dot center dot O, which involve nitrogen atoms of amino and amide groups of the ligand. The coordination sphere of Cu(I) atoms consists of olefin bond of the allyl C=C group, O atom of the carbonyl group, N(3) atom of the triazole nucleus of the organic ligand, and an oxygen atom of nitrate (compound 1) or trifluoroacetate (compound 2) anion, respectively.