Abstract
The polymeric title complex, [Co(C8H8O5)(H2O)2]n was synthesized by reaction of cobalt acetate with 7-oxabicyclo[2,2,1]heptane-2,3-dicarboxylic anhydride. The CoII ion is six-coordinated in a distorted octahedral environment, binding to two water O atoms, to the ether O atom of the bicycloheptane unit, to two carboxylate O atoms from two different carboxylate groups of the same anion and to one carboxylate O atom from a symmetry-related anion. The bridging character of the dianion leads to the formation of ribbons along [001]. The ribbons are linked into a layered network parallel to (010) by several O—H⋯O hydrogen-bonding interactions involving the coordinating water molecules as donors and the carboxylate O atoms of neighbouring ribbons as acceptors. The crystal under investigation was an inversion twin.
Highlights
The polymeric title complex, [Co(C8H8O5)(H2O)2]n was synthesized by reaction of cobalt acetate with 7oxabicyclo[2,2,1]heptane-2,3-dicarboxylic anhydride
The bridging character of the dianion leads to the formation of ribbons along [001]
The ribbons are linked into a layered network parallel to (010) by several O—H O hydrogenbonding interactions involving the coordinating water molecules as donors and the carboxylate O atoms of neighbouring ribbons as acceptors
Summary
Rint = 0.025 a Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, Zhejiang 321004, People’s. R factor = 0.029; wR factor = 0.088; data-to-parameter ratio = 12.6. The CoII ion is six-coordinated in a distorted octahedral environment, binding to two water O atoms, to the ether O atom of the bicycloheptane unit, to two carboxylate O atoms from two different carboxylate groups of the same anion and to one carboxylate O atom from a symmetry-related anion. The ribbons are linked into a layered network parallel to (010) by several O—H O hydrogenbonding interactions involving the coordinating water molecules as donors and the carboxylate O atoms of neighbouring ribbons as acceptors. Symmetry codes: (i) x; y þ 2; z 12; (ii) x; y; z 12; (iii) x; y þ 2; z.
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