TY - JOUR
T1 - High Pressure Electron Spin Resonance of Radicals in Solution
AU - Sueishi, Yoshimi
AU - Nishimura, Norio
PY - 1994
Y1 - 1994
N2 - The history of high-pressure ESR techniques applied to solution chemistry has been surveyed briefly, and our recent investigations have been reviewed. The results are summarized as follows: (1) The rate of spin exchange reactions of nitroxides is diffusion-controlled, and the acti-vation volume is closely related to that for diffusive processes. (2) The rates of spin-lattice re-laxation for the photo-reduced products of 2,5-di-tert-butyl-1,4-benzoquinone(2,5-DBQ) were estimated at various pressures. (3) From the pressure effects on the ESR signal, aspects of di-tert-butyl nitroxide(DTBN) included in cyclodextrins were inferred. (4) The information on the rotational motion of spin-labeled long-chain molecules in solutions was obtained from the anisotropic ESR signals.
AB - The history of high-pressure ESR techniques applied to solution chemistry has been surveyed briefly, and our recent investigations have been reviewed. The results are summarized as follows: (1) The rate of spin exchange reactions of nitroxides is diffusion-controlled, and the acti-vation volume is closely related to that for diffusive processes. (2) The rates of spin-lattice re-laxation for the photo-reduced products of 2,5-di-tert-butyl-1,4-benzoquinone(2,5-DBQ) were estimated at various pressures. (3) From the pressure effects on the ESR signal, aspects of di-tert-butyl nitroxide(DTBN) included in cyclodextrins were inferred. (4) The information on the rotational motion of spin-labeled long-chain molecules in solutions was obtained from the anisotropic ESR signals.
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U2 - 10.4131/jshpreview.2.139
DO - 10.4131/jshpreview.2.139
M3 - Article
AN - SCOPUS:85007666102
SN - 0917-639X
VL - 2
SP - 139
EP - 145
JO - Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
JF - Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
IS - 2
ER -