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6880990 
Journal Article 
(E)-1-(Thiophen-2-yl)-3-(2,4,6-trimethoxyphenyl)prop-2-en-1-one 
Fun, HKun; Suwunwong, T; Anantapong, T; Karalai, C; Chantrapromma, S; , 
2011 
Yes 
Acta Crystallographica. Section E: Structure Reports Online
ISSN: 1600-5368 
WILEY-BLACKWELL 
HOBOKEN 
O3074-U1759 
22220082 
WOS:000297859000151 
There are two crystallograpically independent molecules in the asymmetric unit of the title heteroaryl chalcone derivative, C16H16O4S, with slightly different conformations. The thienyl ring of one molecule is disordered over two positions, with a refined site-occupancy ratio of 0.713 (5): 0.287 (5). The molecules are twisted: the dihedral angle between the thienyl and benzene rings is 9.72 (19)degrees in the ordered molecule, and 3.8 (4) and 2.1 (8)degrees for the major and minor components, respectively, in the disordered molecule. In both molecules, all three substituted methoxy groups are coplanar with the benzene ring to which they are attached. In each molecule, a weak intramolecular C-H center dot center dot center dot O interaction generates an S(6) ring motif. In the crystal structure, adjacent molecules are linked into a three-dimensional network by weak C-H center dot center dot center dot O interactions.