Open AccessKinetic studies of metalloporphyrin formation. Part I. Mn(II) with hematoporphyrin
Author(s) -
Doreen A. Brisbin,
Robert J. Balahura
Publication year - 1968
Publication title -
canadian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.323
H-Index - 68
eISSN - 1480-3291
pISSN - 0008-4042
DOI - 10.1139/v68-570
Subject(s) - hematoporphyrin , chemistry , porphyrin , acetic acid , kinetics , kinetic energy , glacial period , inorganic chemistry , photochemistry , organic chemistry , photodynamic therapy , physics , quantum mechanics , geomorphology , geology
The kinetics of the formation of Mn(III) hematoporphyrin in glacial acetic acid has been studied spectrophotometrically.On addition of Mn(II) to porphyrin in glacial acetic acid a species which appears to be the monocation immediately is formed and is then converted to Mn(III) hematoporphyrin at a rate suitable for kinetic studies.The rates of reaction were measured at 45, 50, and 55 °C and the activation energies were calculated.