Abstract
Neutral complexes of CuII have been synthesised from the Schiff bases derived from salicylidene-4-aminoantipyrine and PhNH2/substituted anilines. The structural features have been determined from their microanalytical, i.r., u.v.–vis., 1H-, 13C-n.m.r., mass and e.s.r. spectral data. All the complexes exhibit square-planar geometry. Their magnetic susceptibility measurements and low conductance data provide evidence for the monomeric and non-electrolytic natures of the complexes respectively. The electrochemical behaviour of the complexes in MeCN at 298 K was studied. The kinetic parameters were determined and are discussed. The X-band e.s.r. spectra of the complexes in DMSO at 300 and 77 K were recorded and their salient features are reported. The powder XRD diffraction patterns for all the complexes are found to be similar. The antimicrobial activity of the ligands and their copper complexes against the bacteria Staphylococcus aureus, Klebsiella pneumoniae, Salmonella typhi, Pseudomonas aerugenosa and Bacillus subtilis are also reported. The complexes have higher activities than those of the free Schiff bases. Moreover, they have higher activity than the control (ampicillin) except for Klebsiella pneumoniae and Pseudomonas aerugenosa.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
T. Hitoshi, N. Tamao, A. Hideyuki, F. Manabu and M. Takayuki, Polyhedron, 16, 3787 (1997).
T. Punniyamurthy, S.J.S. Kalra and J. Iqbal, Tetrahedron Lett., 36, 8497 (1995).
Y.K. Choi, K.H. Chjo, S.M. Park and N. Doddapaneni, J. Electrochem. Soc., 142, 4107 (1995).
B. Katia, L. Simon, R. Anne, C. Gerard, D. Francoise and M. Bernard, Inorg. Chem., 35, 387 (1996).
P.K. Radhakrishnan, Polyhedron, 5, 995 (1986).
R.C. Maurya, D.D. Mishra, M. Pandey, P. Shukla and R. Rathour, Synth. React. Inorg. Met-Org. Chem., 23, 161 (1992).
R.K. Agarwal, P. Garg, H. Agarwal and J. Chandra, Synth. React. Inorg. Met-Org. Chem., 27, 251 (1997).
L. Singh, N. Tyagi, N.P. Dhaka and S.K. Sindhu, Asian J. Chem., 11, 503 (1999).
N.K. Jha and D.M. Joshi, Synth. React. Inorg. Met-Org. Chem., 16, 947 (1986).
P. Thomas and G. Parmeshwaran, J. Indian Chem. Soc., 69, 117 (1992).
A.P. Mishra, V. Srinivastava and S.K. Srinivastava, Synth. React. Inorg. Met-Org. Chem., 25, 21 (1995).
R. Shankar, R.P. Kumar and S.K. Ramalingam, Polyhedron, 5, 991 (1986).
A. Kriza, A. Reiss, S. Florea and T. Caproiu, J. Indian Chem. Soc., 77, 207 (2000).
R. Bu. Xiu, F.L. Mintz, X.Z. You, R.X. Wang, Q. Yue, Q.J. Meng, Y.J. Lu and D.V. Derveer, Polyhedron, 15, 4585 (1996).
Dharmaraj, P. Viswanathamurthi and K. Natarajan, Transition Met. Chem., 26, 105 (2001).
N. Raman, A. Kulandaisamy and K. Jeyasubramanian, Polish J. Chem., 76, 1085 (2002).
P.P. Hankare, R.K. Patil, S.S. Chavan, A.H. Jagtap and P.S. Battase, Indian J. Chem., 40(A), 1326 (2001).
P.V. Ananthalakshmi, D. Sandhyarani and V. Jayatyagaraju, Asian J. Chem., 7, 296 (1995).
A.B.P. Lever, Inorganic Electronic Spectroscopy, 2nd edit., Elsevier, New York, 1968.
L.N. Sharada and M.C. Ganorkar, Indian J. Chem., 27(A), 617 (1988).
D.U. Warad, C.D. Satish, V.H. Kulkarni and C.S. Bajgur, Indian J. Chem., 39(A), 415 (2000).
K. Nakamoto, Infrared Spectra of Inorganic and Coordination Compounds, 4th edit., Wiley-Interscience, New York, 1986.
K.N. Srivastava, S. Das and R.A. Lal, Indian J. Chem., 25(A), 85 (1986).
R.L. Farmer and F.L. Urbach, Inorg. Chem., 13, 587 (1974).
R.K. Ray and G.B. Kaufiman, Inorg. Chim. Acta, 173, 207 (1990).
S. Antosik, N.M.D. Brown, A.A. McConnell and A.L. Potte, J. Chem. Soc., (A), 45 (1969).
J.F. Boas, R.H. Dunhill, J.R. Pilbrow, R.C. Srivastava and J.D. Smith, J. Chem. Soc. (A),94 (1969).
B.J. Hathaway and A.A.G. Tomlinson, Coord. Chem. Rev., 5, 1 (1970).
A.M.F. Benial, V. Ramakrishnan and R. Murugesan, Spectra Chim. Acta, Part A, 56, 2775 (2000).
D.X. West, J. Inorg. Nucl. Chem., 43, 3169 (1984).
S. Dong, Y. Xie and G. Cheng, Electrochim. Acta, 37, 17 (1992).
B.E. Roositer and J.F. Hamilton, Physical Methods of Chemistry-Electrochemical Methods, vol. 2, Wiley, New York, 1986.
M.P. Someshekarappa and J. Keshavayya, J. Synth. React. Inorg., 29, 767 (1999).
Y. Anjaneyulu and R.P. Rao, Synth. React. Inorg. Met-Org. Chem., 16, 257 (1986).
L. Mishra and V.K. Singh, Indian J. Chem., 32(A), 446 (1997).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Raman, N., Kulandaisamy, A., Thangaraja, C. et al. Synthesis, structural characterisation and electrochemical and antibacterial studies of Schiff base copper complexes. Transition Metal Chemistry 29, 129–135 (2004). https://doi.org/10.1023/B:TMCH.0000019409.50574.0a
Issue Date:
DOI: https://doi.org/10.1023/B:TMCH.0000019409.50574.0a