The directional reaction of hydrazine with silver complexes. Part 3. Synthesis and characterization of a copper(I)-hydrazine intermediate complex, Na(N2H4)CuCl2

On the basis of previous work on the directional reaction of hydrazine with silver complexes, the Na(N2H4)CuCl2 complex was prepared in NaOH solution and its structure determined by elemental analysis, electronic, e.s.r., i.r. spectra and by d.t.a. analysis. The i.r. spectrum indicated the presence of bridging hydrazine and chloride. The complex may be polymeric, i.e. an axially elongated (4 + 2) octahedron, with a layer structure connected by hydrazine and chloride ions. Na+ ions are also present in the layers. The addition of the Na(N2H4)CuCl2 complex to N2H4 plus the Ag(NH3)2+ cation not only enhances the oxidation rate, but also increases the N2(%) formed by four-electron reduction of hydrazine by the silver complex.