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Hexaaqua-copper(II) bis-(tetra-fluorido-borate)-pyrazine 1,4-dioxide (1/3).

ABSTRACT: The crystal structure of the title compound, [Cu(H2O)6](BF4)2·3C4H4N2O2, comprises discrete [Cu(H2O)6](2+) cations and BF4 (-) anions along with three equivalents of pyrazine 1,4-dioxide (pzdo). The hexa-aqua-copper(II) ion and all three pzdo mol-ecules lie about crystallographic inversion centers. The lattice is supported by an extensive hydrogen-bonding network. O-H⋯O hydrogen bonding between the [Cu(H2O)6](2+) and pzdo units creates a pseudo-hexa-gonal lattice parallel to the bc plane. The BF4 (-) anions lie in the voids of that lattice, held in place by O-H⋯F hydrogen bonds, and also generate BF4 (-)-pzdo-BF4 (-)-pzdo stacks via short F⋯N contacts [2.866 (3)-3.283 (4) Å].

SUBMITTER: Wikaira JL

PROVIDER: S-EPMC3629502 | biostudies-literature | 2013 Apr

REPOSITORIES: biostudies-literature

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Hexaaqua-copper(II) bis-(tetra-fluorido-borate)-pyrazine 1,4-dioxide (1/3).

Wikaira Jan L JL Landee Christopher P CP Turnbull Mark M MM

Acta crystallographica. Section E, Structure reports online 20130323 Pt 4

The crystal structure of the title compound, [Cu(H2O)6](BF4)2·3C4H4N2O2, comprises discrete [Cu(H2O)6](2+) cations and BF4 (-) anions along with three equivalents of pyrazine 1,4-dioxide (pzdo). The hexa-aqua-copper(II) ion and all three pzdo mol-ecules lie about crystallographic inversion centers. The lattice is supported by an extensive hydrogen-bonding network. O-H⋯O hydrogen bonding between the [Cu(H2O)6](2+) and pzdo units creates a pseudo-hexa-gonal lattice parallel to the bc plane. The BF ...[more]

PMID: 23634020

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