Synthesis, spectral and fungicidal studies on dioxobridged binuclear niobium (V) and tantalum (V) complexes of N-alkylphenothiazines
Synthesis, spectral and fungicidal studies on dioxobridged binuclear niobium (V) and tantalum (V) complexes of N-alkylphenothiazines
Six new dioxobridged binuclear complexes of the type $[MO(L)Z]_2Z$, where M=niobium(V) or tantalum(V), L=N-alkylphenothiazines (NAPs) and Z=tartrate and oxalate for niobium and tantalum respectively, were synthesized. The stoichiometry of the complexes was proposed on the basis of elemental analyses, molar conductance, magnetic and thermal data. The coordination behaviour of the ligands was determined with the help of spectroscopic studies. The fungicidal activity of the complexes was evaluated.
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- 1. O. Bratfos and J.O. Haug, Acta Psychiat Scand., 60. 1-4, (1979).
- 2. A.R. Katritzky and A.J. Boulton, "Advances in Heterocyclic Chemistry," 9, pp. 336 - 345, Academic Press, New York (1968).
- 3. S.H. Snyder, Am. J. Psychiatry, 133, 197 -199 (1976).
- 4. P.C. Dwivedi, K.G. Rao, S.N. Bhat and C.N.R. Rao, Spectrochim. Acta, Part A, 31, 129-132 (1979).
- 5. B. Keshavan and R. Janardhan, Indian J. Chem., 25A, 1054 -1056 (1986).
- 6. B. Keshavan and J. Seetharamappa, Inorg. Chim. Acta, 138, 135-138 (1987).
- 7. B. Keshavan, P.G. Chandrashekara and N. M. Made Gowda, J. Mol. Stru., 553, 193-197 (2000).
- 8. B. Keshavan and R. T. Radhika, Indian J. Chem., 39A, 425-429 (2000).
- 9. A.I. Busev, V.G. Tipstova and V. M. Ivanov, "Analytical Chemistry of Rare Elements," pp. 202-203 and pp. 205-206 MIR Publishers, Moscow (1981).
- 10. E. Batemann, U.S. Dept, Agric. Tech. Bull., 346, 1-6 (1933).
- 11. J.M. Vincent, Nature, 189, 850 (1947).
- 12. S.P. Garg, N.M. Srivatsa and V.N. Sharma, J. Indian Chem. Soc., 52, 1160-1163 (1975).
- 13. L.J. Bellamy, "The Infrared Spectra of Complex Molecules", Methuen, London pp. 355-360 (1964).
- 14. C.N.R. Rao, "Chemical Applications of Infrared Spectroscopy", Academic, London pp. 297-302 (1963).
- 15. F. Brisse and M. Haddad, Inorg, Chem. Acta, 24, 173-175 (1977).
- 16. C. Djordjevic and V. Katovic, J. Inorg. Nucl. Chem., 1099-2002 (1963).
- 17. R. S. Srivastava, Inorg, Chim. Acta, 56, 165-168 (1981).