Synthesis and spectroscopic characterization of cyclic and polymeric phosphazenes bearing phosphine complexes

Abstract

The reactions of the cyclic phosphazenes [N3P3Cl6] and [N3P3(O2C12H8)2Cl2] (O2C12H8 /2,2?-dioxybiphenyl) with the diphenylphosphine phenol complex {Mn(CO)2(h5 -C5H4Me)[PPh2(C6H4 /OH)]} (1) and Cs2CO3 in refluxing acetone gave, respectively the phosphazene/phosphine complexes {N3P3[OC6H4PPh2 /Mn(CO)2(h5 -C5H4Me)]6} (2) and {N3P3(O2C12H8)2- [OC6H4PPh2 /Mn(CO)2(h5 -C5H4Me)]2} (3), in good yields. The analogous reaction of the partially substituted clorophosphazene polymer {[NP(O2C12H8)]0.6[NPCl2]0.4}n in THF gave the polymeric complex [{NP(O2C12H8)}0.6{NP[OC6H4PPh2 /Mn(CO)2(h5 - C5H4Me)]2}0.4 /0.5[OC4H8]n (4). Different spectroscopic data are provided for the new compounds that may be useful for the characterization of other more complex polymeric materials.