%0 Journal Article
%T Crystal Structure Analysis of 6,7-di-O-Methyl-Quercetagetin-3-O- -D-Glucopyranoside dihydrate Isolated from Urena sinuata L
%A Adakarleny Sosa
%A Carmelo Rosquete
%A Julia Bruno
%A Luis Rojas
%J Avances en Qu¨ªmica
%D 2011
%I Universidad de los Andes
%X In the present work, the structural analysis of 6,7-di-O-methyl-quercetagetin-3-O-¦Â-D-glucopyranoside dihydrate (I), which was isolated from Urena sinuata L. (dog wart) collected in T¨¢chira-Venezuela, was achieved by single crystal X-ray diffraction. Compound I crystallizes in the monoclinic system, space group C2 (No. 5) with unit cell parameters a = 29.289(3)  ; b = 6.6352(7)  ; c = 14.6533(13)  ; ¦Â = 113.636(6)¡ã; V = 2608.8(5)  3; Z = 4. The structure refinement converged to R = 0.0421, wR2 = 0.1195, S = 1.02. This is the first X-ray report of this compound obtained from U. sinuata L.
%K Structural analysis
%K Urena sinuata L
%K Crystal X-ray diffraction
%U http://www.saber.ula.ve/bitstream/123456789/34546/1/ac1%206%283%29%2055-59.pdf