RATES OF EXCHANGE OF SOLVENT MOLECULES WITH PARAMAGNETIC IONS.
Abstract
A summary is given of a program aimed at the elucidation of the factors which determine the rate of solvent exchange (and ligand substitution) reactions with transition metal ions in solution. In many octahedral complexes it has become apparent that the reaction is mainly dissociative in nature, and that it is relatively independent of the entering group. Hence the composition of the second coordination sphere (solvation shell) plays an important role in the reaction rate. It was necessary to work out techniques for the determination of the composition of the solvation shell of a complex ion. Several methods of accomplishing this were developed; all of them depending on nuclear magnetic resonance measurements. Then exchange rates with metal ions and dimethylformamide were studied in depth. Some other systems were examined in less detail. There has resulted from the work a useful technique for the study of the kinetics and mechanisms of solvolysis reactions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1967
- Accession Number
- AD0660139
Entities
People
- Cooper H. Langford
- Thomas R. Stengle
Organizations
- University of Massachusetts Amherst