Some transition metal nitrate complexes with hexamethylenetetramine

Part LV. Preparation, X-ray crystallography and thermal decomposition
  • G. Singh
  • B. P. Baranwal
  • I. P. S. Kapoor
  • D. Kumar
  • C. P. Singh
  • R. Fröhlich


Three hexamethylenetetramine (HMTA) metal nitrate complexes such as [M(H2O)4(H2O-HMTA)2](NO3)·4H2O (where M=Co, Ni and Zn) have been prepared and characterized by X-ray crystallography. Their thermal decomposition have been studied by using dynamic, isothermal thermogravimery (TG) and differential thermal analysis (DTA). Kinetics of thermal decomposition was undertaken by applying model-fitting as well as isoconversional methods. The possible pathways of thermolysis have also been proposed. Ignition delay measurements have been carried out to investigate the response of these complexes under condition of rapid heating.


crystal structure hexamethylenetetramine ignition delay iso-conversional isothermal TG metal nitrate model fitting 


  1. 1.
    B. T. Encyclopedia of Explosives and related Items, Vol. 1, Picatiny Aresenel, New Jersey.Google Scholar
  2. 2.
    J. H. Koper, O. G. Jansen and P. J. Vanden, Berg. Explosive Stoff, 8 (1970) 181.Google Scholar
  3. 3.
    G. Singh, I. P. S. Kapoor and D. K. Pandey, J. Energ. Mater., 20 (2002) 223.CrossRefGoogle Scholar
  4. 4.
    G. Singh and D. K. Pandey, Propellants, Explos. Pyro., 28 (2003) 5.Google Scholar
  5. 5.
    S. Y. Sawant, K. R. Kannan and V. M. S. Verneker, 13th National Symposium on Thermal Analysis BARC, Mumbai, India 2002.Google Scholar
  6. 6.
    G. Singh, C. P. Singh and S.M. Mannan, J. Hazarad. Mater., 122 (2005) 111.CrossRefGoogle Scholar
  7. 7.
    G. Singh, C. P. Singh and S. M. Mannan, Thermochim. Acta, 437 (2005) 21.CrossRefGoogle Scholar
  8. 8.
    G. Singh and D. K. Pandey, Combust. Flame, 135 (2003) 135.CrossRefGoogle Scholar
  9. 9.
    G. Singh and D. K. Pandey, J. Therm. Anal. Cal., 82 (2005) 353.CrossRefGoogle Scholar
  10. 10.
    G. Singh, S. Prem Felix and D. K. Pandey, Thermochim. Acta, 411 (2004) 61.CrossRefGoogle Scholar
  11. 11.
    G. Singh, C. P. Singh and S. M. Mannan, J. Hazard. Mater., A135 (2006) 10.CrossRefGoogle Scholar
  12. 12.
    W. Strohmeier and J. F. Guttenberger, Chem. Ber., 96 (1963) 2112.CrossRefGoogle Scholar
  13. 13.
    I. S. Ahuja, C. L. Yadava and S. Tripathi, Ind. J. Chem., (1989) 167.Google Scholar
  14. 14.
    I. S. Ahuja and S. Tripathi, Chemistry Education, October–December 1990.Google Scholar
  15. 15.
    A. Luttringhaus and W. Kullick, Tetrahedron Lett., 10 (1959) 13.CrossRefGoogle Scholar
  16. 16.
    Z. Otwinowski and W. Minor, Methods Enzymol., 276 (1997) 307.CrossRefGoogle Scholar
  17. 17.
    G. M. Sheldrick, Acta Cryst. A, 46 (1990) 467.CrossRefGoogle Scholar
  18. 18.
    G. M. Sheldrick, SHELXL-97, Program for Crystal Structure Refinement, University of Gottingen, Germany 1997.Google Scholar
  19. 19.
    E. Keller, SCHAKAL, A computer program for the graphic representation of molecular and crystallographic models, University of Freiburg, Germany 1997.Google Scholar
  20. 20.
    G. Singh and R. R. Singh, Res. Ind., 23 (1978) 92.Google Scholar
  21. 21.
    G Singh, I. P. S. Kapoor and S. K. Vasudeva, Ind. J. Technol., 29 (1991) 589.Google Scholar
  22. 22.
    S. Vyazovkin and C. A. Wight, J. Phys. Chem., A101 (1997) 8279.Google Scholar
  23. 23.
    N. Semenov, Chemical Reactions, Clarendon Press, Oxford 1935, Chapter 18.Google Scholar
  24. 24.
    E. S. Freeman and S. Gorden, J. Phys. Chem., 60 (1956) 867.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC. 2008

Authors and Affiliations

  • G. Singh
    • 1
  • B. P. Baranwal
    • 1
  • I. P. S. Kapoor
    • 1
  • D. Kumar
    • 1
  • C. P. Singh
    • 1
  • R. Fröhlich
    • 2
  1. 1.Department of ChemistryDDU Gorakhpur UniversityGorakhpurIndia
  2. 2.Organisch-Chemisches InstitutUniversität MünsterMünsterGermany

Personalised recommendations