Synthesis and characterization of Nitrido(tetra-tert-butylphthalocyaninato)rhenium(V) and Nitrido(phthalocyaninato)rhenium(V)

Abstract

4-tert-Butylphthalodinitrile (1) reacts with ammonium perrhenate, NH4Re04, to yield nitrido(tetra-tert-butylphthalocyaninato) rhenium(V),( tBu)4PcReN (2) , which is characterized by IR, UV/Vis, CV, MS, "H and I3C NMR, and elemental analysis. It shows good solubility in common organic solvents. In solution 2 is assumed to be monomeric whereas in the solid state also dimers or higher aggregates are present. From the NMR spectra it is concluded that different constitutional isomers of 2 are formed but not in the expected ratio of a statistical distribution. By analogy with 2, the already known nitrido(phthalocyaninato)rhenium(V), PcReN (3), is prepared for comparison.