title: Crystal structure of ethyl 5-acetyl-2-{[(di-methyl-amino)-methyl-idene]amino}-4-methyl-thio-phene-3-carboxyl-ate.
abstract: In the title thio-phene derivative, C13H18N2O3S, the dihedral angles between the thio-phene ring and the [(di-methyl-amino)-methyl-idene]amino side chain (r.m.s. deviation = 0.009 Å) and the -CO2 ester group are 3.01 (16) and 59.9 (3)°, respectively. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R 2 (2)(16) loops. The dimers are linked by another weak C-H⋯O inter-action, forming chains along [001]. In addition, weak C-H⋯π inter-actions are observed, which link the chains into (001) layers.
authors.affiliation: Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, Karnataka, India.
authors.forename: N L
authors.initials: NL
authors.lastname: Prasad
authors.affiliation: Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, Karnataka, India.
authors.forename: M S
authors.initials: MS
authors.lastname: Krishnamurthy
authors.affiliation: Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, Karnataka, India.
authors.forename: H
authors.initials: H
authors.lastname: Nagarajaiah
authors.affiliation: Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore 560 001, Karnataka, India.
authors.forename: Noor Shahina
authors.initials: NS
authors.lastname: Begum
keywords: C—H⋯π inter­actions; crystal structure; hydrogen bonding; thio­phene derivative