Structures and properties of isomeric cyclodiphosph(III)azanes; X-ray crystal and molecular structure of 2,4-dipiperidino-1,3-di-t-butylcyclodiphosph(III)azane

Marked differences have been found in the nucleophilic reactivity, basicity, and photoelectron spectra of geometrical isomers of the cyclodiphosph(III)azanes, (XPNBut)2(X = NMe2 or OMe), whose structures were assigned by reference to the crystal structure of cis-(C5H10N·PNBut)2.