✍ Scribed by H.J Jakobsen; R.S Hansen
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract The ^34^S isotope effect on the chemical shift of P^III^ nuclei in P(SR)~3~ esters [R = Et, (C~12~H~25~)~n~, Ph] is close to 20.6 ppb per P^III^^34^S bond, i.e. 3–4 times larger than for thiolo sulphur atoms in S = P(SR)~3~ or O = P(SR)~3~. A similar behaviour is noted for the P(S)~3
## Abstract Deuterium isotope effects on ^13^C NMR chemical shifts, (^2^H/^1^H)^__n__^Δ(^13^C), of 2‐methylene‐__d__~2~‐adamantane, 4‐methylene‐__d__~2~‐2‐adamantanone and 6‐methylene‐__d__~2~‐2‐adamantanone are presented. Long‐range effects (^4^Δ, ^5^Δ and ^6^Δ) in a range from 5 to – 23 ppb were
Ab initio results for the shielding constants in acetonitrile were calculated for the isolated molecule, the antiparallel dimer and the antiparallel trimer. It was found that the association effects calculated at the SCF approximation could be successfully compared with experimental NMR gas-to-liqui