TY - JOUR
T1 - Crystal structures of dihydroquercetin 3-acetate and dihydroquercetin 3,3',4',7-tetraacetate
T2 - Hydrogen bonding in 5-hydroxyflavanones
AU - Kiehlmann, Eberhard
AU - Biradha, Kumar
AU - Domasevitch, Konstantin V.
AU - Zaworotko, Michael J.
PY - 1999
Y1 - 1999
N2 - The molecular structures of dihydroquercetin 3-acetate 3 and dihydroquercetin 3,3'.4',7-tetraacetate 4 were determined by single crystal X-ray analysis. Comparison of their crystal data with those, of 16 known 5-hydroxyflavanones shows intramolecular O(5)-H - O(4)=C hydrogen bonding, preference for nearly perpendicular orientation of the two aromatic rings and preferred sofa conformation of the heterocyclic ring. The major stabilizing force in the crystal packing pattern of 3 is intermolecular hydrogen bonding.
AB - The molecular structures of dihydroquercetin 3-acetate 3 and dihydroquercetin 3,3'.4',7-tetraacetate 4 were determined by single crystal X-ray analysis. Comparison of their crystal data with those, of 16 known 5-hydroxyflavanones shows intramolecular O(5)-H - O(4)=C hydrogen bonding, preference for nearly perpendicular orientation of the two aromatic rings and preferred sofa conformation of the heterocyclic ring. The major stabilizing force in the crystal packing pattern of 3 is intermolecular hydrogen bonding.
KW - Crystal structure
KW - Hydrogen bonding
KW - Ihydroquercetin
KW - Lavanones
UR - http://www.scopus.com/inward/record.url?scp=0033306574&partnerID=8YFLogxK
U2 - 10.1139/v99-140
DO - 10.1139/v99-140
M3 - Article
AN - SCOPUS:0033306574
SN - 0008-4042
VL - 77
SP - 1436
EP - 1443
JO - Canadian Journal of Chemistry
JF - Canadian Journal of Chemistry
IS - 8
ER -