Use of carbon-13 nuclear magnetic resonance spectroscopy for determining the position of deuterium incorporation into simple alkenes and into tertiary phosphine complexes of platinum(II)

Abstract

Carbon-13 n.m.r. spectroscopy is shown to be a valuable analytical tool—offering considerable advantages over other physical methods—for investigating the site, and in some cases the degree, of deuterium incorporation in several simple alkenes and also in various tertiary phosphine complexes of platinum(II). ¹³C N.m.r. data are presented for the alkenes, CH₂CHC(CH₃)₂R (R = Et, Pr, and Bu) together with their partially deuteriated analogues and also for the complexes [M₂Cl₄L₂](M = Pd or Pt; and L = PEt₃, PPr₃, PBu₃, or PBu^t₂Pr) together with the partially deuteriated analogues [M = Pt and L = PPr₃(D), PBu₃(D), or PBu^t₂Pr(D)].