TY - JOUR
T1 - (2E,5E)-2,5-Bis(4-hydroxy-3-methoxybenzylidene)cyclopentanone ethanol monosolvate
AU - Da'I, Muhammad
AU - Yanuar, Arry
AU - Meiyanto, Edy
AU - Jenie, Umar Anggara
AU - Supardjan, Amir Margono
PY - 2013/4
Y1 - 2013/4
N2 - In the title structure, C21H20O5· C2H5OH, the curcumine-type molecule has a double E conformation for the two benzylidene double bonds [C=C = 1.342 (4) and 1.349 (4) Å] and is nearly planar with respect to the non-H atoms (r.m.s. deviation from planarity = 0.069 Å). The two phenolic OH groups form bifurcated hydrogen bonds with intramolecular branches to adjacent methoxy O atoms and intermolecular branches to either a neighbouring molecule or an ethanol solvent molecule. The ethanol O atom donates a hydrogen bond to the keto O atom. These hydrogen bonds link the constituents into layers parallel to (101) in the crystal structure.
AB - In the title structure, C21H20O5· C2H5OH, the curcumine-type molecule has a double E conformation for the two benzylidene double bonds [C=C = 1.342 (4) and 1.349 (4) Å] and is nearly planar with respect to the non-H atoms (r.m.s. deviation from planarity = 0.069 Å). The two phenolic OH groups form bifurcated hydrogen bonds with intramolecular branches to adjacent methoxy O atoms and intermolecular branches to either a neighbouring molecule or an ethanol solvent molecule. The ethanol O atom donates a hydrogen bond to the keto O atom. These hydrogen bonds link the constituents into layers parallel to (101) in the crystal structure.
UR - http://www.scopus.com/inward/record.url?scp=84875997205&partnerID=8YFLogxK
U2 - 10.1107/S1600536813005229
DO - 10.1107/S1600536813005229
M3 - Article
C2 - 23634071
AN - SCOPUS:84875997205
SN - 1600-5368
VL - 69
SP - o530
JO - Acta Crystallographica Section E: Structure Reports Online
JF - Acta Crystallographica Section E: Structure Reports Online
IS - 4
ER -