Changes in the NMR characteristics of 3,6‐di‐tert‐butylquinone on formation of paramagnetic complexes

Abstract

High-resolution NMR spectra of 3,6-di-tert-butylquinone were recorded and analyzed for the first time in a wide range of temperatures. The spectra were transformed by paramagnetic additives of cobalt, nickel, and copper complexes synthesized on the basis of metal semiquinolates. Chloroform, dimethylsulfoxide, toluene, and acetone were used as solvents. It was shown that the spectra changed by paramagnetic additives can contain valuable information on the nature of a superfine interaction in paramagnetic complexes and on peculiarities of intramolecular dynamics inherent in these compounds.

The study of structure and dynamics of molecules: NMR spectra transformed by superfine coupling

“…Despite the above peculiarities, analysis of the NMR spectra transformed by superfine interaction quite often allows obtaining unique information on structure and intramolecular dynamics of matter at the molecular level, which is sometimes inaccessible by other research methods. This statement is supported by a number of publications …”