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Catena-Poly[[diaqua-calcium(II)]-di-?-2-chloro-nicotinato].

ABSTRACT: The itle compound, [Ca(C(6)H(3)ClNO(2))(2)(H(2)O)(2)](n), contains polymeric chains extending along [100] that are generated by inversion centres. The Ca(2+) ions are bridged by 2-chloronicotinate groups and exhibit an eight-coordination by six carboxylate O atoms of four different 2-chloronicotinate ligands and two O atoms of water molecules. In the crystal structure, inter-molecular O-H?O, O-H?N and C-H?O hydrogen bonds result in the formation of a supra-molecular network structure. The ?-? contacts between the 2-chloro-nicotinate rings [centroid-centroid distances = 3.875?(3) and 3.701?(3)?Å] may further stabilize the structure.

SUBMITTER: Quan L

PROVIDER: S-EPMC2968257 | biostudies-literature | 2009 Jan

REPOSITORIES: biostudies-literature

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catena-Poly[[diaqua-calcium(II)]-di-μ-2-chloro-nicotinato].

Quan Li L Yin Handong H Cui Liansheng L Yang Minglei M

Acta crystallographica. Section E, Structure reports online 20090110 Pt 2

The itle compound, [Ca(C(6)H(3)ClNO(2))(2)(H(2)O)(2)](n), contains polymeric chains extending along [100] that are generated by inversion centres. The Ca(2+) ions are bridged by 2-chloronicotinate groups and exhibit an eight-coordination by six carboxylate O atoms of four different 2-chloronicotinate ligands and two O atoms of water molecules. In the crystal structure, inter-molecular O-H⋯O, O-H⋯N and C-H⋯O hydrogen bonds result in the formation of a supra-molecular network structure. The π-π co ...[more]

PMID: 21581775

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