(IUCr) Crystallography Journals Online

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Acta Cryst. (2007). E63, m1168-m1170 [ doi:10.1107/S1600536807011282 ]

Poly[[tetraaquabis(₄-fumarato-⁴O:O':O'':O''')(₂-fumarato-⁴O,O':O'',O'''')diterbium(III)] N,N-dimethylformamide solvate]

J. Yang and S. W. Ng

Abstract: Of the three fumarate groups in the title compound, [Tb₂(C₄H₂O₄)₃(H₂O)₄]·C₃H₇NO, one lies on a special position of site symmetry $\\overline{1}$ , whereas the other two lie on special positions of site symmetry 2. The three link the water-coordinated Tb atoms to form a layer structure. The water molecules interact within each layer, and the disordered N,N-dimethylformamide molecules occupy the space between adjacent layers. The Tb atom shows square-antiprismatic coordination.

Online 30 March 2007

Poly[[tetraaquabis(4-fumarato-4O:O':O'':O''')(2-fumarato-4O,O':O'',O'''')diterbium(III)] N,N-dimethylformamide solvate]

J. Yang and S. W. Ng

Poly[[tetraaquabis(₄-fumarato-⁴O:O':O'':O''')(₂-fumarato-⁴O,O':O'',O'''')diterbium(III)] N,N-dimethylformamide solvate]