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Tetra-kis-?-l-alanine-?O:O'-bis-[tetra-aqua-terbium(III)] hexa-perchlorate.

ABSTRACT: The asymmetric unit of the title compound, [Tb(2)(C(3)H(7)NO(2))(4)(H(2)O)(8)](ClO(4))(6), contains a dinuclear cation and six perchlorate anions, one of which is disordered. In the cation, the four l-alanine mol-ecules are present in their zwitterionic form and bridge two Tb(3+) ions through their carboxyl-ate O atoms. Each Tb atom is also coordinated by four water mol-ecules in a square-anti-prismatic geometry. In the crystal structure, the cations and anions are held together via inter-molecular O-H?O and N-H?O hydrogen bonds.

SUBMITTER: Mohamed ME

PROVIDER: S-EPMC2979733 | biostudies-literature | 2010 Jan

REPOSITORIES: biostudies-literature

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Tetra-kis-μ-l-alanine-κO:O'-bis-[tetra-aqua-terbium(III)] hexa-perchlorate.

Mohamed Musa E ME Chopra Deepak D Venugopal K N KN Govender Thavendran T Kruger Hendrik G HG Maguire Glenn E M GE

Acta crystallographica. Section E, Structure reports online 20100123 Pt 2

The asymmetric unit of the title compound, [Tb(2)(C(3)H(7)NO(2))(4)(H(2)O)(8)](ClO(4))(6), contains a dinuclear cation and six perchlorate anions, one of which is disordered. In the cation, the four l-alanine mol-ecules are present in their zwitterionic form and bridge two Tb(3+) ions through their carboxyl-ate O atoms. Each Tb atom is also coordinated by four water mol-ecules in a square-anti-prismatic geometry. In the crystal structure, the cations and anions are held together via inter-molecu ...[more]

PMID: 21579659

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