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

Reaction of di-2-pyridyl ketone N-4-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) Angstrom. The Sn-Cl distances are 2.5541 (4) and 2.6066 (4) Angstrom. The N-H groups form hydrogen bonds to Cl atoms of the anion and the cation contains an intramolecular N-H...N hydrogen bond.