Emitting species in chemiluminescence reactions with acidic potassium permanganate: a re-evaluation based on new spectroscopic evidence.
The reaction of acidic potassium permanganate with a wide range of compounds is known to produce a broad red emission, and there is strong evidence for an excited manganese(II) emitting species. Nevertheless, numerous researchers have proposed other emitters for reactions with acidic potassium permanganate, particularly for systems where fluorescent compounds were present, either as enhancers or reaction products. We have examined many reactions of this type and found that, in most cases, the same red emission was produced. There were, however, some exceptions, including the oxidation of dihydralazine, certain thiols and sulphite (each in the presence of an enhancer).
School of Life and Environmental Sciences, Deakin University, Geelong, Victoria 3217, Australia. jladcock@gmail.com
Jacqui L
JL
Adcock
Paul S
PS
Francis
Neil W
NW
Barnett
D006863:Hydrogen-Ion Concentration; D049449:Luminescence; D010084:Oxidation-Reduction; D011196:Potassium Permanganate / Q000737:chemistry*; D012235:Rhodamines / Q000737:chemistry; D013050:Spectrometry, Fluorescence / Q000379:methods*
D012235:Rhodamines; D011196:Potassium Permanganate; C029773:rhodamine B