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Catena-Poly[[[aqua-(pyrazine-2-carboxamide-κ(2)N(1),O)zinc]-μ-pyrazine-2-carboxamide-κ(3)N(1),O:N(4)] dinitrate].


ABSTRACT: In the crystal of the title compound, {[Zn(C(5)H(5)N(3)O)(2)(H(2)O)](NO(3))(2)}(n), the Zn(II) cation is N,O-chelated by two pyrazine-2-carboxamide (PCA) ligands and is further coordinated by one water mol-ecule and by one pyrazine-N atom from an adjacent PCA ligand in a distorted ZnN(3)O(3) octa-hedral geometry. One of the two independent PCA ligands bridges two Zn(II) cations, forming a zigzag polymeric chain running along the c axis. In the crystal, the NO(3) (-) anions link to the chain via O-H⋯O and N-H⋯O hydrogen bonding. Weak inter-molecular C-H⋯O inter-actions also occur.

SUBMITTER: Shirvan SA 

PROVIDER: S-EPMC3344359 | biostudies-literature | 2012 May

REPOSITORIES: biostudies-literature

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catena-Poly[[[aqua-(pyrazine-2-carboxamide-κ(2)N(1),O)zinc]-μ-pyrazine-2-carboxamide-κ(3)N(1),O:N(4)] dinitrate].

Shirvan Sadif A SA   Haydari Dezfuli Sara S  

Acta crystallographica. Section E, Structure reports online 20120418 Pt 5


In the crystal of the title compound, {[Zn(C(5)H(5)N(3)O)(2)(H(2)O)](NO(3))(2)}(n), the Zn(II) cation is N,O-chelated by two pyrazine-2-carboxamide (PCA) ligands and is further coordinated by one water mol-ecule and by one pyrazine-N atom from an adjacent PCA ligand in a distorted ZnN(3)O(3) octa-hedral geometry. One of the two independent PCA ligands bridges two Zn(II) cations, forming a zigzag polymeric chain running along the c axis. In the crystal, the NO(3) (-) anions link to the chain via  ...[more]

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