Asymmetric Molecules in the Polymorph of 2-Amino-4,5,6,7-tetrahydrobenzo-[b]thiophene-3-carbonitrile

Abstract

The title compound, 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile, C₉H₁₀N₂S, crystallizes in the monoclinic space group P2₁/c with unit-cell parameters: a = 13.3994(11), b = 17.0170(16), c = 7.9319(8)Å, β = 90.051(9)°, Z = 8. The asymmetric unit of the title compound, C₉H₁₀N₂S, contains two crystalographiclly independent molecules, A and B; the cyclohexene rings in both molecules exhibits the half-chair conformation. The packing of the molecules is stabilized by a few N-H…N interactions, which are arranged in such a manner as to form chains.