6-methyl-11a,12-dihydro-6H-quino[3,2-6] [1,4]benzothiazine: An amidine formed under unusual conditions
Document Type
Article
Publication Date
3-1-2003
Abstract
The crystal structure determination of the title compound, C 16H14N2S, confirms the amidine nature of this reaction product. In N,N′-diphenylamidines both phenyl groups are nearly orthogonal with the N-C(-C)=N grouping, whereas in this constrained amidine the benzene groups are substantially less twisted [C-C-N-C torsion angles = -17.2 (7) and 38.1 (6)°]. The result is a slightly cupped molecule with the ring-fused benzene rings appearing like the extended wings of a butterfly. The S-C distances of 1.807 (4) and 1.760 (5) A° are significantly different, with the shorter distance representing the S-C bond to a benzene ring. © 2003 International Union of Crystallography Printed in Great Britain - all rights reserved.
Publication Title
Acta Crystallographica Section E: Structure Reports Online
Recommended Citation
Luck, R.,
Li, K.,
&
Bates, D.
(2003).
6-methyl-11a,12-dihydro-6H-quino[3,2-6] [1,4]benzothiazine: An amidine formed under unusual conditions.
Acta Crystallographica Section E: Structure Reports Online,
59(3).
http://doi.org/10.1107/S1600536803002988
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/10168