Synthesis, and spectral and X-ray structural studies of a novel delocalised diphosphazene (CF3)2P
N
PPh3 and the iron carbonyl complexes [Fe(CO)4{(CF3)2P
N
PPh3}] and [Fe(CO)3{(CF3)2P
N
PPh3}2]
Abstract
The diphosphazene (CF3)2PN
PPh3 L prepared from the reaction of (CF3)2PN3 with PPh3 has been shown from a single-crystal X-ray structural study to possess an unusual and novel delocalised P
N
P moiety containing PIV and PV atoms; the P
N
P structure is retained upon coordination to Fe in the complexes [Fe(CO)4{(CF3)2P
N
PPh3}]1 and [Fe(CO)3{(CF3)2P
N
PPh3}2]2.