Transition metal complexes with pyrazole-derived ligands. X. [Zn(CH3COO)(2)L-2]center dot-2MeOH (L=3-amino-5-phenylpyrazole)
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Monocrystals of the title complex, bis(acetato-O)bis(3-amino-5-phenylpyrazole-N-2)zinc(II) dimethanol solvate, [Zn(C2H3 O-2)(2)(C9H9N3)(2)] . 2CH(4)O, were obtained by crystallization from a methanolic solution of Zn(OAc)(2).-2H(2)O and 3-amino-5-phenylpyrazole (L) (1:2 molar ratio). The two pyridine-N atoms from the pyrazole derivative and two O atoms from the acetate groups are coordinated to the Zn atom in a distorted tetrahedral arrangement. The phenyl and aminopyrazole rings in both ligand molecules are planar within experimental accuracy. As a consequence of the arrangement of the molecules in the unit cell, the dihedral angles between the phenyl and aminopyrazole ring planes in the two ligand molecules are 5.6(2) and 27.4 (2)degrees.
Извор:Acta Crystallographica. Section C: Crystal Structure Communications, 1999, 55, 1769-1771
ISSN: 0108-2701 (print)