Acta Cryst. (2004). E60, m963-m965  [ doi:10.1107/S1600536804013613 ]

A zinc-lanthanum carboxylate complex, [LaZn₂L₆(NO₃)(bipy)₂] (L = -methylacrylate and bipy = 2,2'-bipyridine)

Y. Zhu, W.-M. Lu and F. Chen

Abstract: The crystal structure of the title novel heteronuclear coordination compound, tris(--methylacrylato-1:2²O:O')tris(--methylacrylato-2:3²O:O')(2,2'-bipyridine-1²N,N')(2,2'-bipyridine-3²N,N')(nitro-3²O,O')dizinc(II)lanthanum(III), [LaZn₂(C₄H₅O₂)₆(NO₃)(C₁₀H₈N₂)₂], is built up of discrete molecules of the trinuclear Zn-La-Zn complex, with the central La atom bridged by three bidentate -methylacrylate groups to each of the two Zn atoms. The La atom has a distorted square-antiprismatic coordination, formed by the six O atoms of the bridging methylacrylate groups and two O atoms of the bidentate chelating nitro group. Each of the two Zn atoms has a trigonal bipyramidal coordination, formed by three O atoms of the bridging methylacrylates and two N atoms of the chelating 2,2'-bipyridine ligands.

Online 19 June 2004

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