Nuclear magnetic double resonance studies of organotin selenides

Abstract

¹ H, ¹³C, ⁷⁷Se, and ¹¹⁹Sn chemical shifts, and the signs and magnitudes of coupling constants involving these nuclei, have been measured by nuclear magnetic double resonance techniques in the series Me_4–n(SeR)_n(n= 1–4, R = Me or Ph). The results are interpreted mainly on the basis of inductive electron withdrawal from the tin atom by the electronegative RSe–groups.