NUCLEAR-MAGNETIC-RESONANCE OF PYRIDINE ADDUCTS OF PARAMAGNETIC SALTS OF ALKYLCYCLOALKYLCARBOXYLIC ACIDS

H-1 and C-13 NMR spectra of paramagnetic Co and Ni salts of cyclopenty l-(and cyclohexyl-) carboxylic acids extracted by pyridine are recorde d. Isotropic paramagnetic shifts (IFS) in NMR spectra are measured and , according to the ratio rule, assignment of specific lines in spectra of some salt homologs was made, the other homologs show no significan t distinctions in their NMR spectra. The majority of the lines expecte d to appear in the spectra were observed at room temperature for proto ns in the range 3-100 ppm, and for carbon atoms in the range 25-500 pp m in the appropriate reference scales. The data on NMR IFS and volume paramagnetic susceptibility obtained from NMR measurements yield for t he principal values of the g-tensor in cobalt salt (in the axial appro ximation): g(min) approximate to 1.99 and g(max) approximate to 2.97, and in nickel salt (in the isotropic approximation) g approximate to 2 .11. The present paper does not present the whole body of experimental data, which will appear in forthcoming papers.