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Poly[diaqua-bis(?-4-carb-oxy-2-propyl-1H-imidazole-5-carboxyl-ato-?N,O:O)calcium(II)].


ABSTRACT: In the title complex, [Ca(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)](n), the Ca(II) atom is eight-coordinated in a distorted square-anti-prismatic environment. The water-coordinated Ca atom is N,O-chelated by the monocarboxyl-ate anion; the carboxyl -CO(2) portion engaged in chelation bears an acid hydrogen. The free -CO(2) portion engages in bonding to adjacent Ca atoms. The Ca(II) centres are connected through the ligand, forming a layer structure; the layers are linked by hydrogen bonds into a three-dimensional network.

SUBMITTER: Song WD 

PROVIDER: S-EPMC2980060 | biostudies-literature | 2009 Dec

REPOSITORIES: biostudies-literature

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Poly[diaqua-bis(μ-4-carb-oxy-2-propyl-1H-imidazole-5-carboxyl-ato-κN,O:O)calcium(II)].

Song Wen-Dong WD   Yan Jian-Bin JB   Li Shi-Jie SJ   Miao Dong-Liang DL   Li Xiao-Fei XF  

Acta crystallographica. Section E, Structure reports online 20091212 Pt 1


In the title complex, [Ca(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)](n), the Ca(II) atom is eight-coordinated in a distorted square-anti-prismatic environment. The water-coordinated Ca atom is N,O-chelated by the monocarboxyl-ate anion; the carboxyl -CO(2) portion engaged in chelation bears an acid hydrogen. The free -CO(2) portion engages in bonding to adjacent Ca atoms. The Ca(II) centres are connected through the ligand, forming a layer structure; the layers are linked by hydrogen bonds into a three-dim  ...[more]

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