Investigation of the dynamical behaviour of the FH(CN-) centre in KCl with temperature dependent endor spectroscopy

摘要: Abstract The temperature dependence of the electron nuclear double resonance (ENDOR) spectra FH(CN−) centres in KCl was investigated range between 10–220 K. At lowest 10 K only one CN− orientation with respect to F centre is present, which nitrogen thought be nearer F-electron than carbon. With very small thermal activation energy 2.9 meV opposite occupied. superhyperfine interactions those first shell nuclei nearest and 13C interaction molecule are strongly dependent 60 K, following an exponential law a 4.2 meV. It assumed that soft local mode involving two causing strong dependence. shf 14N have not been seen, probably because dynamical effects.