15N‐NMR. and 31P‐NMR. Studies of palladium and platinum complexes

Abstract 15N‐NMR. parameters for the complexes trans‐[MCl2 (15NH2 (CH2)5CH3)L] are reported; M = Pt, Pd, L = PBu , PMePh2, P (p‐CH3C6H4)3, AsBun3, AsMePh2, As (p‐CH3C6H4)3, NH2 (CH2)5CH3 and (for Pt) C2H4. For both metals, the NMR. parameters depend on the trans‐influence of the ligand L. The values 1J (195Pt, 15N) vary from 138 to 336 Hz and can be shown to correlate with the values 1J (195Pt, 31P) in the complexes trans‐[PtCl2 (PBu )L]. There is a linear relation between the 15N chemical shifts in the complexes of the two metals. The reactions of the complexes sym‐trans‐[M2Cl4L2], M = Pd, Pt, L = a tertiary phosphine or arsine, with neutral ligands are described. 195Pt‐, 31P‐ and 13C‐NMR. data are reported.