Effect of solvent on reactions of coordination complexes - thorium(IV)-catal ysed aquation of oxalatopentaamminecobalt(III) in aqueous-alcohol media
Creators
- 1. Utkal Univ., Bhubaneswar (India). Dept. of Chemistry
Description
The kinetics of title reaction have been investigated in aqueous alcohol media using methanol, propan-2-ol, t-butanol and ethyleneglycol. The efficiency of Th4+ in promoting water for C2O4OTh2+ substitution at Co(III) centre of the binuclear species (NH3)5CoC2O4Th5+ is 20 times larger (kM/kH∼20 at 50degC and fully aqueous medium) than that for H+ indicating importance of the charges and Lewis basicities of the leaving groups. With increasing proportion of any of the cosolvents (vol % of alcohols 10, 20 and 50) the rate constant for the binuclear complex (kM) decreases only to a small extent and the title reaction in D2O-H2O medium is only slightly slower than in fully aqueous media (kM(H2O)/kM(D2O)= 1.12 for 50%(v/v)D2O/H2O at 65degC). (auth or). 13 refs., 3 tabs
Additional details
Publishing Information
- Journal Title
- Indian Journal of Chemistry, Section A
- Journal Volume
- 29
- Journal Issue
- 4
- Series
- Indian J. Chem., Sect. A.
- Journal Page Range
- 379-382
- ISSN
- 0376-4710
- CODEN
- IJCAD
Conference
- Title
- National symposium on dynamics and reaction mechanism.
- Dates
- 16-19 Mar 1989.
- Place
- Jaipur (India).
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 22018504
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BUTANOLS; CATIONS; CHELATES; CHEMICAL REACTION KINETICS; ENTHALPY; ENTROPY; GLYCOLS; METHANOL; OXALATES; PROPANOLS; STABILITY; THORIUM COMPLEXES; THORIUM COMPOUNDS
- Descriptors DEC
- ACTINIDE COMPLEXES; ACTINIDE COMPOUNDS; ALCOHOLS; CARBOXYLIC ACID SALTS; CHARGED PARTICLES; COMPLEXES; HYDROXY COMPOUNDS; IONS; KINETICS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; REACTION KINETICS; THERMODYNAMIC PROPERTIES