[Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o562-o563
[ doi:10.1107/S1600536813007423 ]

(Z)-3-(3,4-Dimethoxybenzylidene)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one

M. Bakthadoss, R. Selvakumar, N. Manikandan and S. Murugavel

Abstract: In the title compound, C18H17NO3S, the seven-membered thiazepine ring adopts a slightly distorted sofa conformation. The dihedral angle between the mean plane of the benzothiazepine ring system and the benzene ring is 5.9 (1)°. The molecular conformation is stabilized by an intramolecular C-H...S hydrogen bond, which generates an S(7) ring motif. In the crystal, N-H...O and C-H...O hydrogen bonds link inversion-related molecules into dimers, incorporating R12(6) and R22(8) ring motifs; the acceptor O atom is bifurcated. These dimers are further linked by C-H...O hydrogen bonds, forming supramolecular tapes running along the a axis. These are connected into the three-dimensional architecture by C-H...[pi] interactions.


Copyright © International Union of Crystallography
IUCr Webmaster