Acta Cryst. (2004). E60, m1035-m1037  [ doi:10.1107/S1600536804015508 ]

The tetrachlorodiphenylstannate(IV) salt of protonated di-2-pyridyl ketone N⁴-ethylthiosemicarbazone

R. Venkatraman, P. C. Ray and F. R. Fronczek

Abstract: Reaction of di-2-pyridyl ketone N⁴-ethylthiosemicarbazone with SnPh₂Cl₂ resulted in the formation of the title complex salt, namely 2-[(ethylaminothioylhydrazono)(2-pyridyl)methyl]pyridinium tetrachlorodiphenylstannate(IV), (C₁₄H₁₆N₅S)₂[SnCl₄(C₆H₅)₂]. The Sn atom is not coordinated directly by the nitrogen base, but one of the pyridines of dipyridylketone is protonated, forming the cation. The Sn atom of the anion lies on an inversion center; thus, the two phenyl groups are trans to each other, with an Sn-C distance of 2.1424  (14)  Å. The Sn-Cl distances are 2.5541  (4) and 2.6066  (4)  Å. The N-H groups form hydrogen bonds to Cl atoms of the anion and the cation contains an intramolecular N-HN hydrogen bond.

Online 9 July 2004

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