Synthesis and characterization of some transition metal complexes of trimeric and tetrameric aminocyclophosphazenes

Abstract

Reactions of aminocyclotri-and aminocyclotetra-phosphazenes, viz., N₃P₃L₆ and N₄P₄L₈ (L = -HN(<i>sec </i>- C₄H₉), -NHC₆H₁₁, -HNC₈H₁₇,-NC₅H₁₀ and -NC₄H₈O) with hydrated Cu(II), Co(II), Ni(II) and Fe(III) chlorides have been studied. CuCl₂.2H₂O give only [(N₃P₃L₆H or N₄P₄L₈H)CuCl₃] whereas with CoCl₂.6H₂O, a mixture of two products, namely, [(N₃P₃L₆H or N₄P₄L₈H)CoCl₃] and , [(N₃P₃L₆H or N₄P₄L₈H)]₂[CoCl₄] are recovered. FeCl₃.6H₂O and NiCl₂.6H₂O give only ionic products of the type [(N₃P₃L₆H)][FeCl₄] and [(N₃P₃L₆H)]₂[NiCl₄]. A few reactions of N₃P₃L₆(L= -HN(<i>sec</i>-C₄H₉),<i> </i>-HNC₆H₁₃ and –HNC₈H₁₇) with Mo(CO)₆, have also been carried out. In these reactions [(N₃P₃L₆)Mo(CO)₃] derivatives are obtained. The complexes have been characterized by analytical data, conductivity, magnetic and IR measurements.