%0 Journal Article
%T HYDROGEN-BONDED SUPRAMOLECULAR ARRAY IN THE CRYSTAL STRUCTURE OF ETHYL 7-HYDROXY-2-OXO-2H-CHROMENE-3-CARBOXYLATE MONOHYDRATE
%A ANTONIO GALD¨˘MEZ
%A OLIMPO GARC¨ŞA-BELTR¨˘N
%A BRUCE K CASSELS
%J Journal of the Chilean Chemical Society
%D 2011
%I Sociedad Chilena de Qu¨Şmica
%X The crystal structure of ethyl 7-hydroxy-2-oxo-2H-chromene-3-carboxylate monohydrate (1), C12H10O5.H2O, was established by X-ray crystallographic analysis. The molecule of the title compound is essentially planar except for the carboxylate substituent group. The crystal packing supramolecular array arises from hydrogen bonds and intermolecular C-H - O=C contacts of the organic molecules and solvent water molecules, with graph-set descriptor R24 (8), R21 (6), R(4)4 ( 20) and C (5) motifs. The water molecules are involved as donors and acceptors. The hydrogen bond and intermolecular interaction network is reinforced by stacking of the sheet through p-p interactions.
%K Crystal structure
%K Coumarins
%K X-ray diffraction
%U http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072011000100005