title: Crystal structure of ethyl 5-[3-(di-methyl-amino)-acrylo-yl]-2-{[(di-methyl-amino)-methyl-idene]-amino}-4-methylthio-phene-3-carb-oxy-late.
abstract: In the title compound, C16H23N3O3S, the dihedral angles between the thio-phene ring and the almost planar di-methyl-amino-methyl-ene-amino (r.m.s. deviation = 0.005 Å) and di-methyl-amino-acryloyl (r.m.s. deviation = 0.033 Å) substituents are 6.99 (8) and 6.69 (7)°, respectively. The ester CO2 group subtends a dihedral angle of 44.92 (18)° with the thio-phene ring. An intra-molecular C-H⋯O hydrogen bond generates an S(6) ring. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R (2) 2(14) loops. In addition, a weak C-H⋯π inter-action is observed.
authors: Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, Karnataka, India.
authors: M S
authors: MS
authors: Krishnamurthy
authors: Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, Karnataka, India.
authors: N L
authors: NL
authors: Prasad
authors: Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, Karnataka, India.
authors: H
authors: H
authors: Nagarajaiah
authors: Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, Karnataka, India.
authors: Noor Shahina
authors: NS
authors: Begum
keywords: C—H⋯π inter­action; crystal structure; hydrogen bonding; thio­phene derivative