Nason TR, Schriver MJ, Hendsbee AD, Masuda JD. Crystal structure determination as part of an ongoing undergraduate organic laboratory project: 5-[(
E)-styr-yl]-1,3,4-oxa-thia-zol-2-one.
Acta Crystallogr E Crystallogr Commun 2017;
73:1298-1301. [PMID:
28932459 PMCID:
PMC5588565 DOI:
10.1107/s2056989017011264]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 07/31/2017] [Indexed: 11/11/2022]
Abstract
The title compound, C10H7NO2S, provides the first structure of an α-alkenyl oxa-thia-zolone ring. The phenyl ring and the oxa-thia-zolone groups make dihedral angles of 0.3 (3) and -2.8 (3)°, respectively, with the plane of the central alkene group; the dihedral angle between the rings is 2.68 (8)°. A careful consideration of bond lengths provides insight into the electronic structure and reactivity of the title compound. In the crystal, extended π-stacking is observed parallel to the a-axis direction, consisting of cofacial head-to-tail dimeric units [centroid-centroid distance of 3.6191 (11) Å]. These dimeric units are separated by a slightly longer centroid-centroid distance of 3.8383 (12) Å, generating infinite stacks of mol-ecules.
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