ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 36, Number 3
JKCSEZ 36(3)
June 20, 1992 

Proton lineshapes and chemical shifts of paramagnetic solutions of Ln(NO3)3 in DMF have been measured over the temperature range 240K to 3807K. Solvation sphere exchange rates and the thermodynamic exchange parameters for CHO group of the DMF molecules have been extracted from these data. The results were established through a detailed analysis and discussion of the temperature depending data of the 1/T2 and △ω data were analyzed in detail, and it has been found that delocalization of the unpaired electron spin from some Ln3+ ion to DMF molecules beyond the first solvation shell would occur, giving rise to a scalar relaxation contribution in the bulk solvent.