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Dynamical superhyperfine interaction of atomic hydrogen in KCl and RbCl
Author(s) -
Hoentzsch Ch.,
Spaeth J. M.
Publication year - 1979
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220940220
Subject(s) - deuterium , quadrupole , chemistry , isotope , atomic physics , hydrogen , kinetic isotope effect , molecular physics , physics , nuclear physics , organic chemistry
With ENDOR the shf and quadrupole interactions of the nearest Cl neighbours of atomic deuterium on cation sites in KCl and RbCl and of first‐ and second‐shell neighbours of interstitial deuterium in RbCl are measured. Comparison with previous data of atomic hydrogen shows a distinct isotope effect indicating a considerable influence of the zero‐point vibration on the shf interactions. Using an orthogonalization model including a Cl 3pσ covalency, the vibrational potential is determined from the isotope effect. It is shown that this theoretical model cannot explain the measured spin density at the nearest Cl neighbours.