Accession Number : AD0287451

Title :   KINETIC STUDIES OF PHOTOTROPIC REACTIONS OF TRIPHENYLMETHANE LEUCONITRILES

Corporate Author : KENT STATE UNIV OHIO

Personal Author(s) : BROWN,GLENN H.

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : The mechanism of the phototropic reaction of triphenylmethane leuconitriles was studied in considerable detail. For the reaction between methyl violet and cyande ion in C2H5OH-H2O systems the decolorization proces is due to ionpar formation. Assuming that a specific ionpir is the reaction intermediate, a simple equation can be used to explain the interaction between the methyl violet and cyanide. Rate constants at 25.0, 35.0 and 42.3 C are given along with thermodynamic values for the reaction between methyl violet and cyanide. The leuconitrile formed by the reaction between methyl violet and cyande is phototropic and on excitation with ultraviolet light will revert to the dye and cyanide. The role of the solvent in the phototropic process is considered. The excitation energy of the photoropic process is estabished. (Author)

Descriptors :   *NITRILES, *TRIPHENYL METHANES, BIBLIOGRAPHIES, CHEMICAL EQUILIBRIUM, CHEMICAL REACTIONS, COLORS, CYANIDES, DYES, ETHANOLS, IONS, REACTION KINETICS, SOLUTIONS(MIXTURES), THERMODYNAMICS, ULTRAVIOLET RADIATION

Distribution Statement : APPROVED FOR PUBLIC RELEASE