Received 21 November 2012
aDepartment of Bio & Nano Chemistry, College of Natural Sciences, Kookmin University, 861-1 Jeongneung-dong, Seongbuk-gu, Seoul 136-702, Republic of Korea, and bDepartment of Physics, College of Natural Sciences, Kookmin University, 861-1 Jeongneung-dong, Seongbuk-gu, Seoul 136-702, Republic of Korea.
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In the title compound, [Ca(C19H11F2O2)2(CH3OH)4]·4CH3OH, the Ca2+ ion is located on an inversion centre and is hexacoordinated by two O atoms of two 4,4''-difluoro-1,1':3',1''-terphenyl-2'-carboxylate ligands and four O atoms of four methanol ligands, forming a CaO6 polyhedron with a slightly distorted octahedral coordination geometry. The Ca-O-C angle between the carboxylate group and the calcium ion is 171.8 (2)°. Two types of intermolecular hydrogen-bond interactions (C=OH and O-HO) between the carboxylate ligand, the methanol solvent molecules and the coordinating methanol ligands generate a two-dimensional network parallel to (001).
For background to metal complexes with 4,4''-difluoro-1,1':3',1''-terphenyl-2'-carboxylate ligands, see: Kannan et al. (2011); Chavez et al. (2001). For mononuclear calcium complexes with carboxylate ligands, see: Perrin et al. (2009); Godino Salido et al. (2004); Huang et al. (2010). For their polymerization behavior, see: Jisha et al. (2010); Murugavel & Banerjee (2003); Yang et al. (2004).
Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: RU2047 ).
This work was supported by the International Collaborative R&D Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by Korea Government Ministry of Knowledge Economy (20118520010020).
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