catena‐Poly[[[cis‐aquabis(4‐carboxycyclohexane‐1‐carboxylato‐κ2O,O′)cadmium(II)]‐μ‐4,4′‐bipyridine‐κ2N:N] monohydrate] |
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Authors: | E Yang Rong‐Qiang Zhuang Jian‐Xin Chen |
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Abstract: | The title complex, {Cd(C8H11O4)2(C10H8N2)(H2O)]·H2O}n, consists of linear chains formed through 4,4′‐bipyridine ligands linking seven‐coordinated CdII ions. Each CdII ion is in a distorted pentagonal–bipyramidal environment, coordinated by one water ligand, two 4‐carboxycyclohexane‐1‐carboxylate ligands and one bridging 4,4′‐bipyridine ligand to generate linear chains. The water molecules and the Cd atom on one side, and the 4,4′‐bipyridine unit on the other, are bisected by two sets of twofold axes. The carboxylate group of the 4‐carboxycyclohexane‐1‐carboxyl ligand chelates a CdII ion, while the (protonated) carboxyl group forms hydrogen bonds with adjacent chains, resulting in a layered structure. This is the first reported occurrence of a dicarboxycyclohexane ligand exhibiting a non‐bridging coordination mode. |
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