title: Crystal structure of ethyl 6-methyl-2-sulfanyl-idene-4-(thio-phen-2-yl)-1,2,3,4-tetra-hydro-pyrimidine-5-carboxyl-ate.
abstract: In the title compound, C12H14N2O2S2, the di-hydro-pyrimidine ring adopts a sofa conformation, with the C atom bearing the thienyl ring lying above the plane of the five remaining approximately coplanar (r.m.s. deviation = 0.0405 Å) atoms of the ring. The dihedral angle between the five near coplanar atoms of the ring and the thienyl ring is 89.78 (11)°. In the crystal, mol-ecules are linked into a supra-molecular chain along [100] via N-H⋯O(carbon-yl) hydrogen bonds. Inversion-related chains are linked into double chains via N-H⋯S(thione) hydrogen bonds. The three-dimensional architecture also features meth-yl-thienyl C-H⋯π inter-actions.
authors: PG & Research Department of Chemistry, Jamal Mohamed College (Autonomous), Tiruchirappalli-20, India.
authors: M
authors: M
authors: Suresh
authors: PG & Research Department of Chemistry, Jamal Mohamed College (Autonomous), Tiruchirappalli-20, India.
authors: M Syed Ali
authors: MS
authors: Padusha
authors: Department of Physics, Idhaya College for Women, Kumbakonam-1, India.
authors: J Josephine
authors: JJ
authors: Novina
authors: Department of Physics, Kunthavai Naachiar Government Arts College (W) (Autonomous), Thanjavur-7, India.
authors: G
authors: G
authors: Vasuki
authors: Centre of Advanced study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai-25, India.
authors: Vijayan
authors: V
authors: Viswanathan
authors: Centre of Advanced study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai-25, India.
authors: Devadasan
authors: D
authors: Velmurugan
keywords: C—H⋯π inter­actions; conformation; crystal structure; hydrogen bonding; pyrimidine