Research Article: Poly[[chloridodimethanol(μ3-pyridine-2,3-dicarboxyl­ato)europium(III)] methanol monosolvate]

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Dayu Wu, Liyang Chen, Genhua Wu.


The asymmetric unit of the title compound, {[Eu(C7H3NO4)Cl(CH3OH)2]·CH3OH}n, contains one EuIII ion, one pyridine 2,3-dicarboxylate dianion (PDC), two CH3OH mol­ecules coordinating to the metal atom, one coordinating chloride and one lattice occluded CH3OH mol­ecule. In the crystal, each PDC anion coordinates to three adjacent EuIII ions by the pyridine N and O atoms of the carboxyl­ate groups. The EuIII cation is eightfold coordinated by four carboxyl­ate O atoms, one pyridine N atom, two MeOH and one chloride anion in the form of a distorted polyhedron. Extended coordination of the PDC ligand lead to the formation of a two-dimensional coordination polymer parallel to (10-1).

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For related work on pyridine-carboxyl­ate transition-metal compounds, see: Swamy et al. (1998 ▶); Zhong et al. (1994 ▶); Zhang et al. (2003 ▶); Wu et al. (2003 ▶); Tong et al. (2000 ▶). For work on lanthanide compounds, see, for example: Zhao et al. (2004 ▶).