Acta Cryst. (2007). E63, m1619-m1620  [ doi:10.1107/S160053680702137X ]

(N-Phenyl-2-{2'-[(phenylethylcarbamoyl)methoxy]biphenyl-2-yloxy}-N-ethylacetamide-⁴O)(2,4,6-trinitrophenolato-O)bis(2,4,6-trinitrophenolato-²O,O')gadolinium(III)

Y.-L. Guo, Y.-W. Wang, W. Dou, W.-S. Liu and D.-Q. Wang

Abstract: In the title compound, [Gd(C₆H₂N₃O₇)₃(C₃₂H₃₂N₂O₄)], the Gd^III ion is nine-coordinated by four O atoms from the N-phenyl-2-{2'-[(phenylethylcarbamoyl)methoxy]biphenyl-2-yloxy}-N-ethylacetamide ligand and five from two bidentate and one monodentate 2,4,6-trinitrophenolate (picrate) ligands. The coordination polyhedron around the Gd^III ion is a distorted tricapped trigonal prism. The tetradentate ligand wraps around the metal ion with its O atoms and forms a ring-like coordination structure together with the Gd atom. The mean distance between the Gd atom and the coordinated carbonyl O atoms is shorter than that between the Gd atom and the coordinated ether atoms. This suggests that the Gd-O (C=O) bond is stronger than the Gd-O (C-O-C) bond.

Online 10 May 2007

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