Size effects in the conduction electron spin resonance of anthracite and higher anthraxolite.

Electron paramagnetic resonance spectroscopy of conduction electrons, i.e. Conduction Electron Spin Resonance (CESR), is a powerful tool for studies of carbon samples.

PEANUT experiment in NQR spectroscopy for I=3/2.

The experiment with phase inversion and phase-inverted echo-amplitude detected nutation (PEANUT) was introduced in the nuclear quadrupole resonance (NQR). Formulas were obtained describing the NQR (I=3/2) experiment. Exemplary experiments are provided confirming the predicted particularities of the PEANUT spectra in NQR Cl-35.

p-Chlorobenzotrichloride revisited: novel analytical treatments of 2D exchange NQR in molecular crystals.

A theoretical treatment of the two-dimensional exchange nuclear quadrupole resonance pulse sequence is presented and applied to the quantitative study of exchange processes in molecular crystals. The theory is successfully tested for the exchange spectra of hindered trichloromethyl groups of p-chlorobenzotrichloride, where the conventional approach without taking into account the off-resonance phenomena has failed. The mixing dynamics by exchange and the expected diagonal- and cross-peak intensities as a function of the mixing time have been derived.

Off-resonance effects in two-dimensional exchange NMR at zero-field.

The effects of off-resonance irradiation in 2D exchange NMR at zero-field are analysed. A theoretical treatment of the 2D exchange NMR pulse sequence is presented and applied to the quantitative study of exchange processes in molecular crystals. It takes into account the off-resonance irradiation, which critically influences the spin dynamics.