Syntheses and crystal structures of two N-substituted thio-imidazoles

The syntheses and structures of two N-substituted thio-imidazoles are reported. The geometrical parameters for both compounds, including essentially planar imidazole rings, are consistent with previous structural studies of related materials. The only possible non-van der Waals’ interactions influencing the molecular packing are weak C–H⋯π bonds. Crystal data: C12H14N2S (N-methyl-N′-2-phenylethyl-imidazol-2-thione), Mr = 218.31, monoclinic, P21/n, (No. 14), a = 6.8441(2) Å, b = 12.9960(4) Å, c = 13.4703(4) Å, β = 97.7729(16)°, V = 1187.12(6) Å3, Z = 4, R(F) = 0.039, wR(F2) = 0.104. C19H20N2S (N,N′-bis((s)-1-phenylethyl)imidazol-2-thione), Mr = 308.43, orthorhombic, P212121 (No. 19), a = 10.4060(3) Å, b = 10.6712(3) Å, c = 14.8932(3) Å, V = 1653.81(7) Å3, Z = 4, R(F) = 0.038, wR(F2) = 0.085.