Abstract

The crystal structure of [Cu(C7H9NO4)H2O] ⋅ 2H2O is determined by X-ray diffraction (λMo, R = 0.0316 for 857 reflections). The crystals are tetragonal, a = 8.219(1) A, c = 17.449(3) A, Z = 4, ρcalcd = 1.627 g cm−3, and space group P43. The coordination polyhedron of the Cu atom is a tetragonal pyramid with the O atom of the acetate arm of the prolinatomonoacetate ion (Proma) in the apical position [Cu-O 2.312(6) A]. The O atom of the water molecule and the N and O atoms of the prolinate group of the Proma ligand lie in the basal plane. The Cu-N bond length is 2.044(6) A, and the Cu-O bond lengths are 1.932(7) and 1.927(6) A. The O atom of the acetate arm of the neighboring Proma ion completes the basal plane [Cu-O 1.951(6) A], thus linking the copper complexes into infinite chains.

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