EPR of Γ-Irradiated Single Crystals of 3-Hydroxyquinuclidine Carboxylic Acid-(3) Hemihydrate

Abstract

Electron paramagnetic resonance of γ-irradiated single crystals of 3-hydroxyquinuclidine carboxylic acid-(3) hemihydrate were investigated at room temperature and at 130 K. The paramagnetic species was attributed to the (CH<inf>2</inf>)<inf>3</inf>N(CH<inf>2</inf>)<inf>2</inf>ĊOHCOOH radical. The principal values of the hyperfine coupling tensor of the unpaired electron with the methylene protons, and the principal values of the g tensor were determined. The results were found to be in good agreement with the existing literature data and theoretical predictions.; Electron paramagnetic resonance of γ-irradiated single crystals of 3-hydroxyquinuclidine carboxylic acid-(3) hemihydrate were investigated at room temperature and at 130 K. The paramagnetic species was attributed to the (CH<inf>2</inf>)<inf>3</inf>N(CH<inf>2</inf>)<inf>2</inf>COHCOOH radical. The principal values of the hyperfine coupling tensor of the unpaired electron with the methylene protons, and the principal values of the g tensor were determined. The results were found to be in good agreement with the existing literature data and theoretical predictions.