Crystal Structure of a Trinuclear Mercury(II) Cyanide Complex of Tetramethylthiourea, [{(Tetramethylthiourea)2Hg(CN)2}2·Hg(CN)2]

Autor: Abdul Rahman Al-Arfaj, Muhammad Altaf, Muhammad Riaz Malik, Saqib Ali, Anvarhusein A. Isab, Helen Stoeckli-Evans, Saeed Ahmad
Rok vydání: 2010
Předmět:
Zdroj: Journal of Chemical Crystallography. 40:1175-1179
ISSN: 1572-8854
1074-1542
DOI: 10.1007/s10870-010-9818-3
Popis: The title compound was prepared by reacting mercury(II) cyanide and tetramethylthiourea (Tmtu) in the molar ratio of 1:1.75. It was characterized by IR and NMR (1H and 13C) spectroscopy, and X-ray crystallography. The appearance of a band around 2,200 cm−1 in IR and a resonance around 145 ppm in 13C NMR indicated the binding of cyanide to mercury(II). The crystal structure of the title complex, [{(tetramethylthiourea)2Hg(CN)2}2·Hg(CN)2] (1) consists of two independent [(Tmtu)2Hg(CN)2] moieties bridged by a Hg(CN)2 unit. The mercury atom in [(Tmtu)2Hg(CN)2] unit is coordinated to two thione sulfur atoms of Tmtu and to two cyanide carbon atoms in a distorted tetrahedral mode.
Databáze: OpenAIRE
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