Abstract
The crystallographic study of a partially hydrated form of cyclomaltoheptaose (β-cyclodextrin, βCD) is reported. C 42H 70O 35·7.5H 2O; space group P2 1 with unit cell constants a = 15.1667(5), b = 10.1850(3), c = 20.9694(7) Å, β = 110.993(2)°; final discrepancy index R = 0.0760 for the 6181 observed reflections and 784 refined parameters. One water molecule is included in the cavity and distributed over two partially occupied positions, the other 6.5 waters distributed over eight positions are located as space-filler between the macrocycles. The crystal structure belongs to the cage-type, like that observed in Form I (βCD·12H 2O; Lindner, K; Saenger, W. Carbohydr. Res. 1982, 99, 103–115) and Form II (βCD·11H 2O; Betzel, C., et al. J. Am. Chem. Soc., 1984, 106, 7545–7567).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
