Hydrazinium metal complexes studies

All these complexes have been investigated by infrared, electronic, and ESR spectroscopy. Magnetic studies were carried out using a Gouy balance at room temperature. Tables 5.7 and 5.8 list, respectively, the IR absorption frequencies and the electronic spectral details and magnetic data of hydrazinium metal oxalates. 

Govindarajan, S. (1983) Structural and thermal studies on hydrazinium (1-I-) metal sulfate and oxalate complexes. Ph.D Thesis, Indian Institute of Science, Bangalore. 

These studies have clearly shown the presence of a hydrazinium cation coordinated to the metal ion. Interestingly, the hydrazinium cation is both coordinated and non-coordinated to metal ions in some oxalate and chloride complexes. The valence or oxidation number of metal ion appears to dictate the bonding. 

Vairam, S., Premkumar, T., and Govindarajan, S. (2010) Trimellitate complexes of divalent transition metals with hydrazinium cation thermal and spectroscopic studies. Journal of Thermal Analysis and Calorimetry, 100, 955-960. 

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