Summary
Complexes of the type M(HXCA)2·nH2O (M = CuII, NiII or CoII; HXCA = 2-hydroxy-ω-4-X-cinnamoyl acetophenone; X = H, Cl, Me or OMe; n = 0 or 2) have been synthesized, and characterized by elemental analysis, i.r., electronic, 1H-n.m.r. and e.s.r. spectroscopies, and magnetic susceptibility measurements. The spectral data indicate that the ligand coordinates through both carbonyl and enolic oxygens. The anhydrous CuII complexes are monomeric and square planar, while the NiII and CoII analogues possess polymeric high-spin octahedral structures. The diaquates and dipyridinates of CoII and NiII have monomeric high-spin octahedral geometries.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
R. C. Mehrotra, R. Bohra and D. P. Gaur, Metal Diketonates and Allied Derivatives, Academic Press, New York, 1978.
D. P. Graddon and G. M. Mockler, Aust. J. Chem., 21, 1487 (1968).
M. Palaniandavar and C. Natarajan, Aust. J. Chem., 33, 737 (1980).
C. Natarajan, P. Shanthi, P. R. Athappan and R. Murugesan, Transition Met. Chem., 17, 39 (1992).
P. R. Athappan, P. Shanthi, R. Murugesan and C. Natarajan, Synth. React. Inorg. Met.-Org. Chem., 23, 1445 (1993).
A. I. Vogel, Practical Organic Chemistry, Longman, London, 1975.
C. Natarajan, C. D. Sheela and P. R. Athappan, Ind. J. Chem., 29A, 569 (1980).
T. Seetharama Rao, K. Laxma Reddy and P. Lingaih, Proc. Ind. Acad. Sci (Chem. Sci.), 100, 363 (1988).
C. G. Percy and D. A. Thornton, J. Inorg. Nucl. Chem., 35, 2719 (1973).
L. G. Hulett and D. A. Thornton, Spectrochem. Acta(A), 27, 2080 (1971).
J. M. Haigh, N. P. Slabbert and D. A. Thornton, J. Inorg. Nucl. Chem., 32, 3635 (1970).
P. R. Athappan and G. Rajagopal, Unpublished work.
B. N. Figgis, Introduction to Ligand Fields, Wiley, New York, 1967.
A. B. P. Lever, Inorganic Electronic Spectroscopy, Elsevier, Amsterdam, 1968.
R. W. Mathew and R. A. Walton, Inorg. Chem., 10, 1433 (1971)
D. L. Williams, D. W. Smith and Stoufer, Inorg. Chem., 6, 590 (1967).
C. J. Ballhausen and H. B. Gray, Inorg. Chem., 1, 111 (1962).
D. Kivelson and R. Neiman, J. Chem. Phys., 35, 149 (1961).
H. A. Kuska and M. T. Rogers, J. Chem. Phys., 43, 744 (1965).
V. C. Swett and E. J. Dudek, J. Phys. Chem., 72,1244 (1968).
C. Natarajan and M. Palaniandavar, Transition Met. Chem., 8, 229 (1983).
V. Sadaguchi and W. A. Addison, J. Chem. Soc., Dalton Trans., 600 (1979).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Athappan, P., Rajagopal, G. Synthesis and spectral studies of copper(II), nickel(II) and cobalt(II) complexes of 2-hydroxy-ω-4-X-cinnamoyl acetophenones and their pyridine adducts. Transition Met Chem 20, 356–360 (1995). https://doi.org/10.1007/BF00139128
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00139128