Structure of the complex of heptakis(2,6-di-O-methyl)-beta-cyclodextrin with (2,4-dichlorophenoxy)acetic acid.
The structure of the complex formed by heptakis(2,6-di-O-methyl)-beta-cyclodextrin and (2,4-dichlorophenoxy)acetic acid was studied by X-ray diffraction. The dichlorophenyl moiety of the guest molecule was found outside the host hydrophobic cavity in the primary methoxy groups region whereas the oxyacetic acid chain penetrates the cavity from the primary face. The host molecules stacks along the a crystal axis forming a column. In the space between three successive hosts of the column, a guest molecule is accommodated.
Physics Laboratory, Agricultural University of Athens, Iera Odos 75, GR-11855, Athens, Greece.
Frantzeska
F
Tsorteki
Dimitris
D
Mentzafos
D015084:2,4-Dichlorophenoxyacetic Acid / Q000737:chemistry*; D002236:Carbohydrate Conformation; D003460:Crystallization; D018360:Crystallography, X-Ray; D003505:Cyclodextrins / Q000737:chemistry*; D006860:Hydrogen Bonding; D008958:Models, Molecular; D047392:beta-Cyclodextrins
D003505:Cyclodextrins; D047392:beta-Cyclodextrins; D015084:2,4-Dichlorophenoxyacetic Acid; C038119:heptakis(2,6-O-dimethyl)beta-cyclodextrin