... The chemical shifts are given in o-units relative to tetramethylsilane. ... 68, 461 (1968). Collection Czechoslovak Chern. ... Page 11. 916 Janda, Srogl, Dvorakova, Dvorak, Stibor 8. Elming N. in the book: Advances in Orgallic Chemistry (RA Raphael, EC Taylor, H. Wynberg, Eds), Vol. ...