Study of inclusion complex of beta-cyclodextrin and nitrobenzene.

Authors :: Chen M
Diao G
Zhang E
Source :: Chemosphere [Chemosphere] 2006 Apr; Vol. 63 (3), pp. 522-9. Date of Electronic Publication: 2005 Dec 01.
Publication Year :: 2006
Abstract: beta-cyclodextrin can react with nitrobenzene to form an inclusion complex which is characterized by (1)H NMR and powder X-ray diffractometry. The ratio of beta-CD to NB in inclusion complex is determined as 1:1. At 25 degrees C, the dissociated constant, K(D), of the inclusion complex is measured as 6.5 x 10(-3) M in neutral solution (pH=7.0), but in alkali (pH=13.5), K(D) is 3.2 x 10(-2) M which is much larger than that measured in neutral.