Coordination and self-assembly in the crystal structure of K[AsMe2S2] · 2H2O
Pascu, S., Silaghi-Dumitrescu, L., Blake, A. J., Haiduc, I. and Sowerby, D. B., 1998. Coordination and self-assembly in the crystal structure of K[AsMe2S2] · 2H2O. Polyhedron, 17 (23-24), pp. 4115-4119.
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A major feature of the crystal structure of K[AsMe2S2]. 2H(2)O. which contains two independent formula units, is the presence of infinite sheets formed by edge sharing between two different types of K(H2O)(4)S-2 octahedra in which the sulfurs occupy either cis or ti ans positions. Although the four independent arsenic-sulfur distances all fall between those for single and double bonds, one sulfur at each arsenic is coordinated to potassium and the As-S distance here is longer [mean 2.140(2) Angstrom] than that to the second sulfur [mean 2.111(5) Angstrom] which is effectively free. The structure also contains a series of weak O-H ... S hydrogen bonds.
|Creators||Pascu, S., Silaghi-Dumitrescu, L., Blake, A. J., Haiduc, I. and Sowerby, D. B.|
|Departments||Faculty of Science > Chemistry|
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