Diphosphazanes as Ligands. Symbiosis of Phosphorus Chemistry and Organometallic Chemistry

A review contg. 10 refs. The reactivity of a range of new acyclic, cyclic and bicyclic diphosphazanes with Group VIB metal and iron carbonyl derivs. and organometallic derivs. of palladium, platinum and rhodium is discussed. Several novel and structurally interesting complexes including the seven coordinated species of the type, $M(CO)_3I_2L$ (M = Mo, W; L = diphosphazane) have been isolated and their structures elucidated by IR and 1H, 13C and 31P NMR spectroscopy and in a few instances by single crystal x-ray anal