The title compound, C6H14Cl4N2OP2, has an acyclic monophosphazene skel
eton and a bulky diisopropylamino side group. The bulky substituent is
instrumental in determining the molecular geometry. The P-N bonds hav
e neither single-nor double-bond character and are substantially short
er than the ideal P-N single bond. The P-N-P angle [134.0 (2)degrees]
is similar to the angle found in cyclotetraphosphazenes, but wider tha
n that in cyclotriphosphazenes.