Kinetics of complexation of the cesium ion with large crown ethers in acetone and in methanol solutions. [Dibenzo-21-crown-7 and dibenzo-24-crown-8]

Journal Article · Thu Oct 24 04:00:00 EDT 1985 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100268a032· OSTI ID:6052482

Strasser, B O; Shamsipur, M; Popov, A I

The kinetics of complexation of the Cs ion with the ligands dibenzo-21-crown-7 (DB21C7) and dibenzo-24-crown-8 (DB24C8) were studied in acetone and in methanol solutions by cesium-133 NMR. In all systems, the predominant mechanism of exchange between the solvated and complexed Cs ion sites is the bimolecular process. The kinetic parameters for the exchange have been determined. With both crown ethers, the free energy barrier for the exchange process appears to be independent of solvent. 12 references, 2 figures, 2 tables.

• Research Organization: Michigan State Univ., East Lansing
• OSTI ID: 6052482
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 89:22; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ACETONE
ALCOHOLS
ALKALI METAL COMPOUNDS
ARRHENIUS EQUATION
CESIUM COMPOUNDS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
EQUATIONS
EXPERIMENTAL DATA
GLYCOLS
HYDROXY COMPOUNDS
INFORMATION
KETONES
KINETICS
METHANOL
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYETHYLENE GLYCOLS
POLYMERS
REACTION KINETICS
SOLVENT PROPERTIES
TEMPERATURE DEPENDENCE