ESR observation of the H··· H, H···D, and D··· D spin-pair radicals in rare gas matrices
ACS Citation
Knight, L. B.; Rice, W. E.; Moore, L.; Davidson, E. R. ESR observation of the H··· H, H···D, and D··· D spin-pair radicals in rare gas matrices. J. Chem. Phys. 1995, 103, 5275-5275.
Version of Record
Abstract
The first experimental observation of the fundamentally important spin-pair radicals, H··· H, H···D, and D··· D is reported. ESR(electron spin resonance) studies of rare gas matrices near 4 K containing extremely high concentrations of H and D atoms revealed the presence of these spin exchange-coupled molecules whose ESR spectra are analyzed in terms of a 3Σ electronic ground state. The observed D tensor (zero-field splitting) for a specific isotopic spin pair was surprisingly constant in all four rare gases but showed large changes among the three isotopic species. As expected, the hyperfine splitting (Aiso) for the spin-pair was observed to be one-half that of the free H or D atom.
Source Name
Journal of Chemical Physics
Publication Date
1-1-1995
Volume
103
Issue
13
Page(s)
287-295
Document Type
Citation
Citation Type
Article