Crystal structure of 1-(cyclopentylideneamino)-3-(prop-2-en-1-yl)thiourea

Abstract

In the title compound, C9H15N3S, the cyclopentyl ring adopts an envelope conformation with one of the methylene C atoms as the flap. The thiosemicarbazide fragment is almost planar (r.m.s. deviation = 0.038 Å) and a short intramolecular N—H...N contact occurs. In the crystal, molecules are linked into helical (41 symmetry) chains propagating in [001] by N—H...N and N—H...S hydrogen bonds. A very weak C—H...S interaction is also observed.

Keywords

• crystal structure
• thiosemicarbazides
• hydrogen bonding