Tetra-Sodium Nitrilo-Tris(methylenephosphonato)-Manganate(II) Na-4[Mn-II{N(CH2PO3)(3)}] center dot 13H(2)O: Synthesis and Some Structural Features

摘要

A sodium salt of the complex of nitrilo-tris(methylenephosphonic) (NTP) acid with Mn(II) (Na-4[Mn-II{N(CH2PO3)(3)}] center dot 13H(2)O, sp. gr. P (1) over bar, Z = 2, a = 11.2146(4) angstrom, b = 11.2687(4) angstrom, c = 12.4625(4) angstrom, alpha = 108.619(3)degrees, beta = 97.149(3)degrees, gamma = 116.991(4)degrees) has been synthesized and investigated. This complex is binuclear with a chelate structure; the Mn coordination polyhedron is a distorted trigonal bipyramid with three O atoms of different PO3 groups of the NTP molecule in the base, with the nitrogen atom of the NTP molecule in one vertex, and the O atom of the neighboring NTP molecule in the opposite vertex. The crystal packing is of island type; Mn polyhedra share (pairwise) edges and are surrounded by a spatial binding of Na polyhedra and water molecules.