Abstract
New dihydrazinium divalent transition metal trimellitate hydrates of empirical formula (N2H5)2M(Html)2·nH2O, where n = 1 for M = Co or Ni, and n = 2 for M = Mn, Zn, or Cd (H3tml = trimellitic acid), and monohydrazinium cadmium trimellitate, [(N2H5)Cd(Html)1.5·2H2O] have been prepared and characterized by physico-chemical methods. Electronic spectroscopic, and magnetic moment data suggest that Co and Ni complexes adopt an octahedral geometry. The IR spectra confirm the presence of monodentate carboxylate anion (Δν = νasy(COO−) − νsym(COO−) > 190 cm−1) and coordinated N2H5 + ion (νN–N 1015 − 990 cm−1) in all the complexes. All the complexes undergo endothermic decomposition eliminating CO2 in the temperature region 200–250 °C, followed by exothermic decomposition (in the range of 500–570 °C) of organic moiety to give the respective metal carbonate as the end products except nickel and cobalt complexes, which leave respective metal oxides. X-ray powder diffraction patterns reveal that Ni and Co complexes are isomorphous as are those of, Zn(II) and Cd(II) of the type, (N2H5)2M(Html)2·2H2O.
Similar content being viewed by others
References
Choppin GR, Rizkalla EN, El-ansi TA, Dadgar A. Complexation thermodynamics of lanthanide ions by benzenepolycarboxylate ligands. J Coord Chem. 1994;31:297–304.
Wang Z-M, Van de Burgt LJ, Choppin GR. Spectroscopic study of lanthanide(III) complexes with carboxylic acids. Inorg Chim Acta. 1999;193:167–77.
Brzyska W, Kurpiel-Gorgol R, Dabkowska M. Thermal decomposition of scandium(III) benzenetricarboxylates in air and nitrogen atmospheres. J Therm Anal Calorim. 1983;28:333–9.
Brzyska W, Wolodkiewicz W. Thermal decomposition of copper(II) benzenetricarboxylates in air atmosphere. J Therm Anal Calorim. 1986;31:961–5.
Gajapathy D, Govindarajan S, Patil KC, Manohar H. Synthesis, characterisation and thermal properties of hydrazinium metal oxalate hydrates. Crystal and molecular structure of hydrazinium copper oxalate monohydrate. Polyhedron. 1983;2:865–73.
Govindarajan S, Patil KC, Poojary MD, Manohar H. Synthesis, characterization and X-ray structure of hexahydrazinium diuranyl pentaoxalate dihydrate, (N2H5)6(UO2)2(C2O4)5·2H2O. Inorg Chim Acta. 1986;120:103–7.
Sivasankar BN, Govindarajan S. Acetate and malonate complexes of cobalt(II), nickel(II) and zinc(II) with hydrazinium cation. Preparation, spectral and thermal studies. J Therm Anal Calorim. 1997;48:1401–13.
Kuppusamy K, Govindarajan S. Hydrazinium cation as a ligand: preparation and spectral, thermal and XRD studies on hydrazinium metal phthalates. Eur J Solid State Inorg Chem. 1995;32:997–1012.
Premkumar T, Govindarajan S. Thermoanalytical and spectroscopic studies on hydrazinium lighter lanthanide complexes of 2-pyrazinecarboxylic acid. J Therm Anal Calorim. 2009. doi:10.1007/s10973-009-0117-1 (online first).
Premkumar T, Govindarajan S. Transition metal complexes of pyrazinecarboxylic acids with neutral hydrazine as a ligand. J Therm Anal Calorim. 2005;79:115–21.
Premkumar T, Govindarajan S. The chemistry of hydrazine derivatives—thermal behavior and characterisation of hydrazinium salts and metal hydrazine complexes of 4, 5-imidazoledicarboxylic acid. Thermochim Acta. 2002;386:35–42.
Premkumar T, Govindarajan S. Divalent transition metal complexes of 3,5-pyrazoledicarboxylate. J Therm Anal Calorim. 2006;84:395–9.
Gonsalves LR, Verenkar VMS, Mojumdar SC. Preparation and characterization of Co0.5Zn0.5Fe2(C4H2O4)3·6N2H4. J Therm Anal Calorim. 2009;96:53–7.
Vikram L, Sivasankar BN. Hydrazinium metal(II) and metal(III) ethylenediamine tetraacetate hydrates. J Therm Anal Calorim. 2008;91:963–70.
Raju B, Sivasankar BN. Spectral, thermal and X-ray studies on some new Bis–hydrazine lanthanide(III) glyoxylates. J Therm Anal Calorim. 2008;94:289–96.
Vikram L, Raju B, Ragul R, Sivasankar BN. Thermal degradation studies on some lanthanide–EDTA complexes containing hydrazinium cation. J Therm Anal Calorim. 2008;93:987–91.
Vogel AI. A text book of quantitative inorganic analysis. 4th ed. London: Longman; 1986.
Cotton FA, Wilkinson G. The elements of the first transition series. In: Advanced inorganic chemistry. 3rd ed. New Delhi: Wiley Eastern; 1972. p. 881.
Figgis BN, Lewis J. The magnetic properties of transition metal complexes. In: Progress in inorganic chemistry. 6th ed. New York: F.A. Cotton, Interscience; 1964. p. 1430.
Brown DB, Donner JA, Hall JW, Wilson SR, Wilson RB, Hondgson DJ, et al. Interaction of hydrazine with copper(II) chloride in acidic solutions. Formation, spectral and magnetic properties, and structures of copper(II), copper(I), and mixed-valence species. Inorg Chem. 1979;18:2635–41.
Braibanti A, Dallavalle F, Pellinghelli MA, Laporati E. The nitrogen-nitrogen stretching band in hydrazine derivatives and complexes. Inorg Chem. 1968;7:1430–3.
Nakamoto K. Infrared and Raman spectra of inorganic and coordination compounds. 3rd ed. New York: Wiley Interscience; 1978.
Gonzalez-Sanchez F. Infra-red spectra of the benzene carboxylic acids. Spectrochim Acta. 1958;12:17–33.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Vairam, S., Premkumar, T. & Govindarajan, S. Trimellitate complexes of divalent transition metals with hydrazinium cation. J Therm Anal Calorim 100, 955–960 (2010). https://doi.org/10.1007/s10973-009-0459-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10973-009-0459-8