Abstract
New complexes of MoO2(VI), WO2(VI), Th(IV) and UO2(VI) with aroyl hydrazones have been prepared and characterized by various physicochemical methods. Elemental analysis suggested 1 : 1 metal : ligand stoichiometry for MoO2(VI), WO2(VI), and UO2(VI) complexes whereas 1 : 2 for Th(VI) complexes. The physicochemical studies showed that MoO2(VI), Th(IV) and UO2(VI) complexes are octahedral. The electrical conductivity of these complexes lies in the range 1.00 × 10−7−3.37 × 10−11Ω−1 cm−1 at 373 K. The complexes were found to be quite stable and decomposition of the complexes ended with respective metal oxide as a final product. The thermal dehydration and decomposition of these complexes were studied kinetically using both Coats-Redfern and Horowitz-Metzger methods. It was found that the thermal decomposition of the complexes follow first order kinetics. The thermodynamic parameters of the decomposition are also reported. The biological activities of ligands and their metal complexes were tested against various microorganisms.
Similar content being viewed by others
References
A. Mangia, P. L. Messori, C. Pelizzi, and G. Pellizi, Inorg. Chim. Acta 68, 137 (1983).
M. Kotyal and Y. Dutt, Talanta 22, 151 (1975).
C. Pellizi, G. Pellizi, F. Vitali, J. Chem. Soc., Dalton Trans., 177 (1987).
T. M. Amminabhavi, N. S. Biradar, and W. F. Rudziuk, Inorg. Chim. Acta 78, 107 (1983).
S. N. Pandeya, D. Sriram, G. Nath, and E. De. Clercq, Eur. J. Pharma. Soc. 9, 25 (1999).
P. G. More, R. B. Bhavankar, and S. C. Patter, J. Ind. Chem. Soc. 78, 474 (2001).
S. Shah, R. Vyas, and R. H. Mehta, J. Ind. Chem. Soc. 69, 590 (1992).
A. S. Fouda, G. E. Badr, and M. N. El-Haddad, J. Korean Chem. Soc. 52, 124 (2008).
M. Verma, S. N. Pandeya, K. N. Singh, and J. P. Stables, Acta Pharm. 54, 49 (2004).
A. Campos, J. R. Anacona, and M. M. Campos-Vallette, Main Group Metal Chem. 22, 283 (1999).
A. Syamal and M. R. Maurya, Coord. Chem. Rev. 95,183 (1998).
B. S. Furniss, A. J. Hannaford, P. W. G. Smith, and A. R. Tatchell, Vogel’s Textbook of Practical Organic Chemistry, 5th Ed. (Logmans, London, 1989).
S. S. Tavale and C. Gopinathan, Bull Chem. Soc. Jpn. 68, 2847 (1995).
M. R. Maurya and C. Gopinathan, Ind. J. Chem. A 35, 701 (1996).
A. P. Mishra and M. Khare, J. Ind. Chem. Soc. 77, 367 (2000).
K. H. Reddy and M. R. Reddy, J. Ind. Chem. Soc. 79,219 (2002).
A. Syamal and D. Kumar, Ind. J. Chem. A 23, 7000 (1984).
A. O. Rajan, S. Adhikari, and A. Chakravorky, Ind. J. Chem. A 15, 377 (1977).
A. C. Hazell, J. Chem. Soc. (London), 5745 (1963).
A. W. Coats and J. P. Redfern, Nature 201, 68 (1964).
H. H. Horowitz and G. Metzger, Anal. Chem. 35, 1464 (1958).
A. Syamal and B. K. Gupta, J. Ind. Chem. Soc. 8, 911 (1981).
M. Thankamony, K. B. Sindhu, G. Rijulal, and K. Mohanan, J. Therm. Anal. Calorim. 1, 259 (2009).
D. R. Bhadja and P. H. Parsania, J. Ind. Chem. Soc. 79,932 (2002).
A. P. Mishra and L. R. Pandey, Ind. J. Chem. A 44, 94 (2005).
V. V. Dhande, V. B. Badwaik, and A. S. Aswar, Russ. J. Inorg. Chem. 52, 1206 (2007).
Author information
Authors and Affiliations
Corresponding author
Additional information
The article is published in the original.
Rights and permissions
About this article
Cite this article
Yaul, A.R., Dhande, V.V., Bhadange, S.G. et al. Synthesis, structural studies and biological activity of dioxomolybdenum(VI), dioxotungsten(VI), thorium(IV) and dioxouranium(VI) complexes with 2-hydroxy-5-methyl and 2-hydroxy-5-chloroacetophenone benzoylhydrazone. Russ. J. Inorg. Chem. 56, 549–554 (2011). https://doi.org/10.1134/S0036023611040280
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0036023611040280