Abstract Selenium-77 substituent-caused chemical shifts, where the substituents are alkyl groups, have been studied for a series of selenols, selenides and diselenides, respectively. An understanding of the origin of these shifts was obtained by examining solvent effects on 77 Se chemical shifts of dialkyl selenides and dialkyl diselenides in ten halocarbon solvents of varying molecular polarizabilities as well as in 2, 2, 2-trifluoroethanol. Based on these ...
