Optical detection of ESR spectra of short-lived ion-radical pairs produced in solution by ionizing radiation

Journal Article · Thu Jul 10 04:00:00 EDT 1980 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100451a023· OSTI ID:5101952

Molin, Y N; Anisimov, O A; Grigoryants, V M; Molchanov, V K; Salikhov, K M

A new and very sensitive technique to detect ESR spectra of short-lived radical pairs in solution is proposed on the basis of optical detection of magnetic resonance (ODMR). An ODMR spectrometer has been constructed for detecting ESR spectra of ion-radical pairs created by ionizing radiation. The singlet ESR signal from (naphthalene)-/(naphthalene)/sup +/ pairs has been observed in a naphthalene solution in squalene at an average concentration of 20 radical pairs per sample with a signal-to-noise ratio equal to 10/1. The hyperfine structure has been resolved in the ESR spectrum of (diphenyl)-/(diphenyl)/sup +/ pairs at a low diphenyl concentration in squalane and spectrum narrowing due to charge-transfer reaction has been observed at a high diphenyl concentration.

• Research Organization: Institute of Chemical Kinetics and Combustion, Novosibirsk, USSR
• OSTI ID: 5101952
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 84:14; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
AROMATICS
BEAMS
BIPHENYL
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CONDENSED AROMATICS
DATA
DECOMPOSITION
ELECTRON SPIN RESONANCE
ELECTRONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
HYDROCARBONS
INFORMATION
IONIZING RADIATIONS
IONS
LEPTON BEAMS
LEPTONS
MAGNETIC RESONANCE
NAPHTHALENE
NUMERICAL DATA
ORGANIC COMPOUNDS
PARTICLE BEAMS
POLYENES
POSITRON BEAMS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
RESONANCE
SQUALENE
TERPENES