Abstract
The new salts of pyridine-4-aldehyde thiosemicarbazone: perchlorate (I) and trifluoromethane sulfonate (II) HN+C5H4-CH=N-NH-C(S)-NH2·X− (X = ClO4, CF3SO3) were synthesized and studied by IR and NMR spectroscopy and X-ray diffraction analysis. The compounds were synthesized by a reaction of pyridine-4-aldehyde thiosemicarbazone with chloric or trifluoromethane sulfonic acid, respectively. Compound I crystallized in the triclinic crystal system, space group P-1, a = 6.8691(2) Å, b = 9.5406(4) Å, c = 9.6348(4) Å, α = 78.838(1)°, β = 77.618(1)°, γ = 69.661(1)°, Z = 2. Compound II crystallized in the monoclinic crystal system, space group P21/c, a = 7.3149(8) Å, b = 11.9830(16) Å, c = 15.143(2) Å, β= 96.949(4)°, Z = 4. The structures are formed by hydrogen-bonded ions. Moreover, the cations are linked in “dimmers” due to the weak N-H...S hydrogen bonds.
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Original Russian Text Copyright © 2009 by A. I. Smolentsev, L. G. Lavrenova, V. N. Elokhina, A. S. Nakhmanovich, and L. I. Larina
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Translated from Zhurnal Strukturnoi Khimii, Vol. 50, No. 3, pp. 522–526, May–June, 2009.
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Smolentsev, A.I., Lavrenova, L.G., Elokhina, V.N. et al. Crystal structures of pyridine-4-aldehyde thiosemicarbazone perchlorate and trifluoromethane sulfonate. J Struct Chem 50, 500–504 (2009). https://doi.org/10.1007/s10947-009-0076-1
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DOI: https://doi.org/10.1007/s10947-009-0076-1