Metal Hydrazine Carboxylates

This chapter describes the synthesis, infrared spectra, electronic spectra, and thermal reactivity of several simple and mixed metal hydrazine carboxylate complexes. It deals with investigations of the coordination of hydrazine carboxylate anion as a bidentate ligand, forming numerous metal complexes. The chapter summarizes the infrared absorption frequencies of metal hydrazine carboxylate complexes and their assignments. Some metals ions react with hydrazine carboxylate anion to form metal hydrazine carboxylate hydrates. Metal hydrazine carboxylate hydrazine complexes are prepared by treating an aqueous solution containing metal ions with a 5% solution of N2H3COOH in N2H4.H2O. The chapter gives thermal decomposition data of hydrazinium metal hydrazine carboxylate hydrates. Hydrazinium cobalt and iron complexes form solid solutions in the entire range of solid solutions of hydrazinium metal hydrazine carboxylate hydrates.