B. R. Srinivasan, Ashish R. Naik, C. Näther
Apr 1, 2010
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Journal
Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical
Abstract
The reaction of (NH 4 ) 2 [WS 4 ] with 1-methylpiperazine results in the formation of 1-methylpiperazinediium tetrasulfidotungstate monohydrate, in good yield. (Me-pipH 2 )[WS 4 ]·H 2 O has been characterized by elemental analysis, IR, Raman and UV-vis spectra and its crystal structure. The title compound crystallizes in the centrosymmetric monoclinic space group P2 1 /c and its structure consists of a discrete, slightly distorted tetrahedral tetrasulfidotungstate anion, 1-methylpiperazinediium cation and lattice water, which are linked by five varieties of H-bonding interactions namely N-H ··· O, N-H···S, O-H···S, C-H···O and C-H···S. The lattice water links pairs of organic cations with pairs of [WS 4 ] 2- anions via N-H···O, O-H···S, and C-H···O bonds, while the cations and anions are linked via N-H···S, and C-H···S bonds.