A novel multifunctionalised diphosphine ligand containing a P-N-Si-N-P back
bone ha, been prepared and studied. The ligand, Ph2PN(Py)Si(Me)(2)N(Py)PPh2
from complexes with platinum and palladium containing six membered M-P-N-S
i-N-P heterocycles. The structure, synthesis, and reactivity of these heter
ocycles is discussed.