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(3-Amino-pyrazin-4-ium-2-carboxyl-ate-?N,O)diaqua-zinc(II) dinitrate.

ABSTRACT: The water-coordinated Zn(II) atom in the title salt, [Zn(C(5)H(5)N(3)O(2))(2)(H(2)O)(2)](NO(3))(2), is N,O-chelated by a zwitterionic amino-pyraziniocarboxyl-ate unit; the metal atom, which lies on a center of inversion, shows an octa-hedral coordination. The nitrate ion inter-acts indirectly, through N-H?O hydrogen bonds. In the crystal, adjacent cations and anions are connected by O-H?O hydrogen bonds into a three-dimensional network motif. The crystal studied was a non-merohedral twin with two minor components of 15.1?(1) and 8.0?(1)%.

SUBMITTER: Gao S

PROVIDER: S-EPMC3009295 | biostudies-literature | 2010 Oct

REPOSITORIES: biostudies-literature

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(3-Amino-pyrazin-4-ium-2-carboxyl-ate-κN,O)diaqua-zinc(II) dinitrate.

Gao Shan S Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20101030 Pt 11

The water-coordinated Zn(II) atom in the title salt, [Zn(C(5)H(5)N(3)O(2))(2)(H(2)O)(2)](NO(3))(2), is N,O-chelated by a zwitterionic amino-pyraziniocarboxyl-ate unit; the metal atom, which lies on a center of inversion, shows an octa-hedral coordination. The nitrate ion inter-acts indirectly, through N-H⋯O hydrogen bonds. In the crystal, adjacent cations and anions are connected by O-H⋯O hydrogen bonds into a three-dimensional network motif. The crystal studied was a non-merohedral twin with tw ...[more]

PMID: 21588883

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