Summary
The oxovanadium(IV) complexes [(VOSO4·H2O)2L] and [(VO)2L1(μ-SO4)] (L = hydrazone ligands derived from 1,4-dihydrazinophthalazine and benzaldehyde, 4-chlorobenzaldehyde, 4-methoxybenzaldehyde or acetophenone; L 1H2 = hydrazone ligands derived from 1,4-dihydrazinophthalazine and salicylaldehyde, 2-hydroxyacetophenone or 2-hydroxynaphthaldehyde) have been prepared and characterized by elemental analyses, electrical conductance, magnetic moments and spectral data. Reduced magnetic moments are observed for all sulfato-bridged derivatives, indicating antiferromagnetically coupled vanadium(IV) centres. The vanadium(IV) centres appear to have five-coordinated stereochemistries in the systems which involve two metals bound to each ligand. The thermal behaviour of the complexes was investigated by t.g. and d.t.g. techniques. The antifungal and antiviral activities of the hydrazones and their corresponding complexes were also investigated. The screening results have been correlated with the structural features of the tested compounds.
Similar content being viewed by others
References
B. Prescott, G. Lones and G. Caldes, Antimicrob. Agents Chemother., 262 (1968).
P. Robichaud and L. K. Thompson, Inorg. Chim. Acta, 85, 137 (1984).
D. Attanasio, G. Dessy and V. Fares, Inorg. Chim. Acta, 104, 99 (1985).
T. Wen, L. K. Thompson, F. L. Lee and E. J. Gabe, Inorg. Chem., 27, 4190 (1988).
G. Bullock, F. W. Hartstock and L. K. Thompson, Can J. Chem., 61, 57 (1983).
M. Ghedini, G. De. Munno, G. Denti, A. M. L. Manotti and A. Tiripicchio, Inorg. Chim. Acta, 57, 87 (1982).
J. C. Dewan and L. K. Thompson, Can. J. Chem., 60, 121 (1982).
L. Y. Chung, E. C. Constable, A. R. Dale, M. S. Khan, M. C. Liptrot, J. Lewis and P. R. Raithby, J. Chem. Soc., Dalton Trans., 1397 (1990).
S. Yadav, S. Srivastava, O. P. Pandey and S. K. Sengupta, Synth. React. Inorg. Met.-Org. Chem., 24, 925 (1994).
V. K. Sharma, O. P. Pandey and S. K. Sengupta, Transition Met. Chem., 12, 509 (1987).
R. Das, K. K. Nanda, A. K. Mukherjee, M. Mukherjee, M. Helliwell and K. Nag, J. Chem. Soc., Dalton Trans., 2241 (1993).
M. Koppen, G. Fresen, K. Wieghardt, R. M. Llusar, B. Nuber and J. Weiss, Inorg. Chem., 27, 721 (1988).
A. Ozarowaski and D. Reinen, Inorg. Chem., 25, 1704 (1986).
A. Neves, K. Weighardt, B. Nuber and J. Weiss, Inorg. Chim. Acta, 150, 183 (1988).
C. J. Ballhausen and H. B. Gray, Inorg. Chem., 1, 111 (1962).
O. P. Pandey, Polyhedron, 5, 1587 (1986).
V. K. Sharma, O. P. Pandey, S. K. Sengupta and D. M. Halepoto, Transition Met. Chem., 14, 263 (1989).
K. Nakamoto, Infrared and Raman Spectra of Inorganic and Coordination Compounds, 3rd Edit., Wiley, New York, 1978, p. 240.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Srivastava, S., Pandey, O.P. & Sengupta, S.K. Binuclear oxovanadium(IV) complexes of phthalazine hydrazone ligands. Transition Met Chem 21, 262–265 (1996). https://doi.org/10.1007/BF00165980
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00165980