An Equilibrium and Kinetic Investigation of Salt-Cycloamylose Complexes
Abstract
The equilibrium constants and rate constants for the formation of inclusion complexes of cycloheptaamylose with small inorganic anions were measured by a spectrophotometric technique and an ultrasonic relaxation technique respectively. The stability of the complexes of anions with cycloheptaamylose decreased. Comparison is made between the equilibrium constants and the interaction of free anions with the solvent. Periodate and ClO4(-) exhibited a complexation rate constant 30 times greater than the remainder of the anions. A concentration independent relaxation was observed for aqueous cyclohexaamylose in the uncomplexed state. No like behaviour was observed for cycloheptaamylose. A conformational change in the cycloheptaamylose may be the rate determining step in the complexation of the more slowly reacting anions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 08, 1976
- Accession Number
- ADA033876
Entities
People
- Edward M. Eyring
- John F. Wojcik
- Licesio J. Rodriguez
- Ronald P. Rohrbach
Organizations
- University of Utah