title: Crystal structure of (2-methyl-4-phenyl-4H-benzo[4,5]thia-zolo[3,2-a]pyrimidin-3-yl)(phen-yl)methanone.
abstract: In the title compound, C24H18N2OS, the pyrimidine ring has a flat envelope conformation with the methine C atom as the flap. The attached phenyl and benzoyl rings are inclined to the mean plane of the pyrimidine ring by 84.87 (8) and 75.33 (9)°, respectively. The benzo-thia-zolo group is planar (r.m.s. deviation = 0.009 Å) and inclined to the mean plane of the pyrimidine ring by 3.27 (6)°. In the crystal, mol-ecules are linked by pairs of C-H⋯N hydrogen bonds, forming inversion dimers.
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: T
authors.initials: T
authors.lastname: Sankar
authors.affiliation: Institution of Excellence, University of Mysore, Manasagangotri, Mysore 570 006, India.
authors.forename: S
authors.initials: S
authors.lastname: Naveen
authors.affiliation: Department of Studies in Physics, University of Mysore, Manasagangotri, Mysore 570 006, India.
authors.forename: N K
authors.initials: NK
authors.lastname: Lokanath
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: K
authors.initials: K
authors.lastname: Gunasekaran
keywords: C—H⋯N hydrogen bonding; benzo; crystal structure; pyrimidine; thia­zolo