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Bis[hexa-aquacobalt(II)] 25,26,27,28-tetra-hydr-oxy-2,8,14,19-tetra-thia-calix[4]arene-5,11,17,23-tetra-sulfonate monohydrate.

ABSTRACT: In the crystal structure of the title compound, [Co(H(2)O)(6)](2)(C(24)H(12)O(16)S(8))·H(2)O, the thia-calix[4]arenetetra-sulfonate (= TCAS(4-)) anions adopt a cone-type conformation with an additional water mol-ecule as a guest mol-ecule in the hydro-phobic cavity. The TCAS(4-) anions are arranged in layers in an up-down fashion. These anionic layers alternate with cationic layers consisting of rather regular octahedral cations (symmetry m). Several medium O-H?O hydrogen-bond inter-actions exist between the aqua ligands of the [Co(H(2)O)(6)](2+) cations and the O atoms of the sulfonate groups. In addition to the two crystallographically different Co atoms, two S and four O atoms are situated on mirror planes.

SUBMITTER: Akashi H

PROVIDER: S-EPMC2961390 | biostudies-literature | 2008 May

REPOSITORIES: biostudies-literature

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Bis[hexa-aquacobalt(II)] 25,26,27,28-tetra-hydr-oxy-2,8,14,19-tetra-thia-calix[4]arene-5,11,17,23-tetra-sulfonate monohydrate.

Akashi Haruo H Ichikawa Misato M

Acta crystallographica. Section E, Structure reports online 20080510 Pt 6

In the crystal structure of the title compound, [Co(H(2)O)(6)](2)(C(24)H(12)O(16)S(8))·H(2)O, the thia-calix[4]arenetetra-sulfonate (= TCAS(4-)) anions adopt a cone-type conformation with an additional water mol-ecule as a guest mol-ecule in the hydro-phobic cavity. The TCAS(4-) anions are arranged in layers in an up-down fashion. These anionic layers alternate with cationic layers consisting of rather regular octahedral cations (symmetry m). Several medium O-H⋯O hydrogen-bond inter-actions exis ...[more]

PMID: 21202485

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