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Catena-Poly[[tetra-aqua-copper(II)]-?-pyrazine-2-carboxamide-?(3)N(4):N(1),O-[bis-(sulfato-?O)copper(II)]-?-pyrazine-2-carboxamide-?(3)N(1),O:N(4)].

ABSTRACT: In the crystal of the title polymeric compound, [Cu(2)(SO(4))(2)(C(5)H(5)N(3)O)(2)(H(2)O)(4)](n), two independent Cu(II) atoms are located on individual inversion centers. One Cu(II) atom is coordinated by four water mol-ecules and two pyrazine-2-carboxamide ligands in a distorted O(4)N(2) octa-hedral geometry; the other is N,O-chelated by two pyrazine-2-carboxamide ligands and further coordinated by two sulfate anions in a distorted O(4)N(2) octa-hedral geometry. The pyrazine-2-carboxamide ligands bridge the Cu(II) atoms to form a polymeric chain running along [110]. The crystal structure features N-H?O, O-H?O and weak C-H?O hydrogen bonds.

SUBMITTER: Shirvan SA

PROVIDER: S-EPMC3414139 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature

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catena-Poly[[tetra-aqua-copper(II)]-μ-pyrazine-2-carboxamide-κ(3)N(4):N(1),O-[bis-(sulfato-κO)copper(II)]-μ-pyrazine-2-carboxamide-κ(3)N(1),O:N(4)].

Shirvan Sadif A SA Haydari Dezfuli Sara S

Acta crystallographica. Section E, Structure reports online 20120718 Pt 8

In the crystal of the title polymeric compound, [Cu(2)(SO(4))(2)(C(5)H(5)N(3)O)(2)(H(2)O)(4)](n), two independent Cu(II) atoms are located on individual inversion centers. One Cu(II) atom is coordinated by four water mol-ecules and two pyrazine-2-carboxamide ligands in a distorted O(4)N(2) octa-hedral geometry; the other is N,O-chelated by two pyrazine-2-carboxamide ligands and further coordinated by two sulfate anions in a distorted O(4)N(2) octa-hedral geometry. The pyrazine-2-carboxamide liga ...[more]

PMID: 22904746

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