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 Hg^II 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