Skip to main content
Log in

Divalent transition metal complexes

  • Published:
Journal of Thermal Analysis and Calorimetry Aims and scope Submit manuscript

Abstract

4-(4-ethoxy-phenylhydrazono)-1-phenyl-3-methyl-1H-pyrazolin-5(4H)-one (5a) (H-EMPhP) as ligand and its Cu(II), Co(II) and Ni(II) complexes 4(a-c) were synthesized and characterized by their thermal and spectral properties. The azocoupling product (H-EMPhP), able of azo-hydrazone tautomerism 5(a-d), act as a bidentate ligand involving in coordination the azogroup nitrogen of its common anion (7) and the oxygen atom that is bound to the pyrazole ring of the mentioned anion (7).

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. W. Krohs and O. Hensel, Pyrazolone und Dioxopyrazolidine, Cantor/Aulendorf i. Württ, 1961, pp. 411-460.

  2. R. Price, in ‘The Chemistry of Synthetic Dyes’, Editor K. Venkataraman, Vol. III Academic Press, London 1970, pp. 303-369.

    Google Scholar 

  3. H. Zollinger, Color Chemistry, 2nd Edn. VCH, Basel 1991, pp. 110-127, 134-136, 156-157.

    Google Scholar 

  4. M. M. Moustafa and R. M. Issa, Egypt. J. Chem., 42 (1999) 267; Chem. Abstr., 132 (2000) 69948b.

    Google Scholar 

  5. R. R. Rudalal, J. J. Patel and A. G. Mehta, Orient. J. Chem., 15 (1999) 559; Chem. Abstr., 132 (2000) 252441v.

    Google Scholar 

  6. J. J. Patel, G. H. Bhat and K. R. Desai, J. Inst. Chem. (India), 71 (1999) 185; Chem. Abstr., 133 (2000) 136740p.

  7. I. V. Mur, J. Obsch. Khim., 26 (1956) 384.

    Google Scholar 

  8. F. A. Snavely and F. H. Suydam, J. Org. Chem., 24 (1959) 2039.

    Google Scholar 

  9. B. E. Zaitev, V. A. Zaiteva, A. K. Molodkin and E. S. Obraztova, Zh. Neorg. Khim., 24 (1979) 127.

    Google Scholar 

  10. F. A. Adam and M. T. El-Haty, Delta J. Sci., 11 (1987) 1089; Chem. Abstr., 111 (1989) 145745s.

    Google Scholar 

  11. I. Panea, A. Ghirisan, I. Cristea, R. Gropeanu and I. A. Silberg, Het. Commun., 7 (2001) 563.

    Google Scholar 

  12. R. Jones, A. J. Rian, S. Sternhell and S. E. Wright, Tetrahedron, 19 (1963) 1497.

    Article  Google Scholar 

  13. L. M. Jackman and S. Sternhell, Application of Nuclear Magnetic Resonance Spectroscopy in Organic Chemistry, 2ndEdn. Pergamon Press, London 1969, p. 164.

    Google Scholar 

  14. J. Elguero, C. Marzin, A. R. Katritzky and P. Linda, The Tautomerism of Heterocycles, Academic Press, New York 1976, pp. 313-339.

    Google Scholar 

  15. H. Mustroph, Z. Chem., 27 (1987) 281.

    Google Scholar 

  16. Q. Peng, M. Li, K. Gao and L. Cheng, Dyes Pigm., 18 (1992) 271.

    Article  Google Scholar 

  17. J. Oakes and P. Gratton, J. Chem. Soc., Perkin Trans., 2 (1998) 1857.

    Google Scholar 

  18. N. Ertan, Dyes Pigm., 44 (2000) 41.

    Article  Google Scholar 

  19. I. Panea, A. Ghirişan, I. Bâldea, I. Silaghi-Dumitrescu, L. Crăciun and I. A. Silberg, Studia Univ. ‘Babeş-Bolyai’, Chemia, 48 (2003) 65.

    Google Scholar 

  20. S. A. Abdel-Latif and H. B. Hassib, J. Therm. Anal. Cal., 68 (2002) 983.

    Article  Google Scholar 

  21. S. A. Abdel-Latif, O.M. El-Roudi and M. G. K. Mohamed, J. Therm. Anal. Cal., 73 (2003) 939.

    Article  Google Scholar 

  22. S. L. Stefan, J. Thermal Anal., 42 (1994) 1299.

    Google Scholar 

  23. F. E. Mabbs and D. Colisson, Electron Paramagnetic Resonance of d Transition Metal Compound, Elsevier, Amsterdam 1992, p. 105.

    Google Scholar 

  24. G. Simeonov, A. Draganov and D. Ructschev, J. Thermal Anal., 41 (1994) 201.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Bâtiu, C., Panea, I., Ghizdavu, L. et al. Divalent transition metal complexes. J Therm Anal Calorim 79, 129–134 (2005). https://doi.org/10.1007/s10973-004-0573-6

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10973-004-0573-6

Navigation