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Redetermination of the crystal structure of K2Hg(SCN)4.

ABSTRACT: Single crystals of K2Hg(SCN)4 [dipotassium tetra-thio-cyanato-mercurate(II)] were grown from aqueous solutions of potassium thio-cyanate and mercury(II) thio-cyanate and studied by single-crystal X-ray diffraction. In comparison with the previously reported structure model [Zvonkova (1952 ?). Zh. Fiz. Khim. 26, 1798-1803], all atoms in the crystal structure were located, with lattice parameters and fractional coordinates determined to a much higher precision. In the (crystal) structure, the HgII atom is located on a twofold rotation axis and is coordinated in the form of a distorted tetra-hedron by four S atoms of the thio-cyanate anions. The K+ cation shows a coordination number of eight.

SUBMITTER: Bandemehr J 

PROVIDER: S-EPMC5499294 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Redetermination of the crystal structure of K<sub>2</sub>Hg(SCN)<sub>4</sub>.

Bandemehr Jascha J   Conrad Matthias M   Kraus Florian F  

Acta crystallographica. Section E, Crystallographic communications 20170627 Pt 7

Single crystals of K<sub>2</sub>Hg(SCN)<sub>4</sub> [dipotassium tetra-thio-cyanato-mercurate(II)] were grown from aqueous solutions of potassium thio-cyanate and mercury(II) thio-cyanate and studied by single-crystal X-ray diffraction. In comparison with the previously reported structure model [Zvonkova (1952 ▸). <i>Zh. Fiz. Khim</i>. <b>26</b>, 1798-1803], all atoms in the crystal structure were located, with lattice parameters and fractional coordinates determined to a much higher precision.  ...[more]

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