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Catena-Poly[[[diaqua-bis(8-hydroxy-quinoline N-oxide-?O)cobalt(II)]-?-2,5-dimethyl-pyrazine 1,4-dioxide-?O:O] bis-(perchlorate)].

ABSTRACT: In the title complex, {[Co(C(6)H(8)N(2)O(2))(C(9)H(7)NO(2))(H(2)O)(2)](ClO(4))(2)}(n), the Co(II) ion lies on an inversion centre and is coordinated in a slightly distorted octa-hedral environment. The 2,5-dimethyl-pyrazine 1,4-dioxide ligand, which also lies on an inversion center, acts as a bridging ligand, linking symmetry-related Co(II) ions [Co?Co = 8.669?(3)?Å] and forming one-dimensional chains along the b axis. In the crystal structure, these chains are linked by inter-molecular aqua-perchlorate O-H?O hydrogen bonds, forming two-dimensional layers which are in turn connected into a three-dimensional network via ?-? stacking inter-actions between quinoline rings, with a centroid-centroid distance of 3.580?(3)?Å. An intermolecular O-H?Cl inter-action is also present.

SUBMITTER: Gu LQ

PROVIDER: S-EPMC2984066 | biostudies-literature | 2010 Mar

REPOSITORIES: biostudies-literature

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catena-Poly[[[diaqua-bis(8-hydroxy-quinoline N-oxide-κO)cobalt(II)]-μ-2,5-dimethyl-pyrazine 1,4-dioxide-κO:O] bis-(perchlorate)].

Gu Li Qin LQ Li Jin Min JM

Acta crystallographica. Section E, Structure reports online 20100313 Pt 4

In the title complex, {[Co(C(6)H(8)N(2)O(2))(C(9)H(7)NO(2))(H(2)O)(2)](ClO(4))(2)}(n), the Co(II) ion lies on an inversion centre and is coordinated in a slightly distorted octa-hedral environment. The 2,5-dimethyl-pyrazine 1,4-dioxide ligand, which also lies on an inversion center, acts as a bridging ligand, linking symmetry-related Co(II) ions [Co⋯Co = 8.669 (3) Å] and forming one-dimensional chains along the b axis. In the crystal structure, these chains are linked by inter-molecular aqua-per ...[more]

PMID: 21580503

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