Abstract
Trinuclear copper(II) and nickel(II) complexes have been prepared by using Schiff base ligands derived from 1,8-[bis(3-formyl-2-hydroxy-5-methyl) benzyl]-4,11-dimethyl-l,4,8,11-tetraazacyclotetradecane, and 1,8-[bis(3-formyl-2-hydroxy-5-bromo)benzyl]-4,11-dimethyl-l,4,8,11-tetraazacyclotetradecane with aliphatic and aromatic diamines. All the complexes were characterized by elemental and spectroscopic analysis. Electrochemical studies of the copper(II) complexes in DMF solution show three irreversible one electron reduction process around E 1pc = −0.59 to −0.80 V, E 2pc = −0.89 to −1.14 V and E 3pc = −1.17 to −1.29 V, and for nickel(II) complexes it is around E 1pc = −0.63 to −0.77 V, E 2pc = −1.20 to −1.35 V and E 3pc = −1.60 to −1.74 V. ESR spectra and magnetic moments of the trinuclear Cu(II) complexes show the presence of antiferromagnetic coupling. Cryomagnetic investigation of the trinuclear copper(II) complexes show that the observed −2J values are in the range of 116–178 cm−1. The rate constants for hydrolysis of 4-nitrophenylphosphate by the complexes are in the range of 2.68 × 10−2 to 9.81 × 10−2 min−1. The rate constants values for the catecholase activity of the copper(II) complexes fall in the range of 3.03 × 10−2 to 9.32 × 10−2 min−1. All the complexes.
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Hancock, R.D., Maumela, H., Desousa, A.S.: Macrocyclic ligands with pendent amide and alcoholic oxygen donor groups. Coord. Chem. Rev. 148, 315 (1996)
Hegg, E.L., Burstyn, J.N.: Toward the development of metal-based synthetic nucleases and peptidases: a rationale and progress report in applying the principles of coordination chemistry. Coord. Chem. Rev. 173, 133 (1998)
Bradshaw, J.S.: Aza-crown Macrocycles. Wiley, New York (1993)
Lehn, J.M.: Supramolecular Chemistry. VCH, New York (1995)
Lindoy, L.F.: The Chemistry of Macrocyclic Ligand Complexes. Cambridge University Press, Cambridge, UK (1993)
Sorrell, T.N.: Synthetic models for binuclear copper proteins. Tetrahedron 45, 3 (1989)
Solomon, E.I., Tuczek, F., Root, D.E., Brown, C.A.: Spectroscopy of binuclear dioxygen complexes. Chem. Rev. 94, 827 (1994)
Kitajima, N., Moro-oka, Y.: Copper-dioxygen complexes. Inorganic and bioinorganic perspectives. Chem. Rev. 94, 737 (1994)
Duff, J.C.: A new general method for the preparation of o-hydroxyaldehydes from phenols and hexamethylenetetramine. J. Chem. Soc. 547 (1941)
Lambert, E., Chabut, B., Noblat, S.C., Deronzier, A., Chottard, G., Bousseksou, A., Tuchagues, J.-P., Laugier, J., Dardet, M., Latour, J.-M.: Synthesis, structural, magnetic, and redox properties of asymmetric diiron complexes with a single terminally bound phenolate ligand. Relevance to the purple acid phosphatase enzymes. J. Am. Chem. Soc. 119, 9424 (1997)
Royal, G., Gindrey, V.D., Dahaowi, S., Tabard, A., Guilard, R., Pullumbi, P., Lecomte, C.: New synthesis of trans-disubstituted cyclam macrocycles—elucidation of the disubstitution mechanism on the basis of X-ray data and molecular modeling. Eur. J. Org. Chem. 1971 (1998)
Gayathri, D., Velmurugan, D., Ravikumar, K., Sreedaran, S., Narayanan, V.: 1,8-Bis(3-formyl-5-methyl-2-oxidobenzyl)-1,8-diaza-4,11-diazoniacyclotetradecane chloroformsolvate. Acta. Crystallogr. E62, o3714 (2006)
Saravanakumar, D., Sengottuvelan, N., Priyadarshni, G., Kandaswamy, M., Okawa, H.: Synthesis of unsymmetrical ‘end-off’ phenoxo and oximinato di bridged copper(II) and nickel(II) complexes: spectral, electrochemical and magnetic properties. Polyhedron 23, 665 (2004)
Sreedaran, S., Bharathi, K.S., Rahiman, A.K., Jagadish, L., Kaviyarasan, V., Narayanan, V.: Novel unsymmetrical macrocyclic dicompartmental binuclear copper(II) complexes bearing 4- and 6-coordination sites: electrochemical, magnetic, catalytic and antimicrobial studies. Polyhedron 27, 2931 (2008)
Sreedaran, S., Bharathi, K.S., Rahiman, A.K., Rajesh, K., Nirmala, G., Jagadish, L., Kaviyarasan, V., Narayanan, V.: Synthesis, electrochemical, catalytic and antimicrobial activities of novel unsymmetrical macrocyclic dicompartmental binuclear nickel(II) complexes. Polyhedron 27, 1867 (2008)
Sreedaran, S., Bharathi, K.S., Rahiman, A.K., Prabu, R., Jegaeesh, R., Raaman, N., Narayanan, V.: N-functionalised cyclam based trinuclear copper(II) complexes: electrochemical, magnetic, catalytic and antimicrobial studies. Trans. Met. Chem. 34, 33 (2009)
Srinivas, B., Arulsamy, N., Zacharias, P.S.: Catalytic and magnetic properties of a new series of binuclear copper(II) complexes. Polyhedron 10, 731 (1991)
Fraser, C., Bosnich, B.: Catecholase activity of a series of dicopper(II) complexes with variable Cu-OH(phenol) moieties. Inorg. Chem. 41, 1788 (2002)
Volkmer, D., Hommerich, B., Griesar, K., Haase, W., Krebs, B.: Dinuclear nickel(II) complexes as models for the active site of urease. Inorg. Chem. 35, 3792 (1996)
Okawa, H., Tadokora, M., Aratake, T.Y., Ohba, M., Shindom, K., Mitsumi, M., Koikawa, M., Tomono, M., Fenton, D.E.: Dicopper(II,II) and dicopper(I,II) complexes of a series of dinucleating macrocycles. J. Chem. Soc., Dalton Trans. 253 (1993)
Bleany, B., Bowers, K.D.: Proc. R. Soc. Lond., Ser. A 214, 415 (1952)
Amudha, P., Akilan, P., Kandaswamy, M.: Synthesis, spectral, electrochemical and magnetic properties of new phenoxo-bridged dicopper(II) complexes derived from unsymmetrical binucleating ligands with imino and amino side arms. Polyhedron 19, 1769 (2000)
Thompson, L.K., Mandal, S.K., Tandon, S.S., Bridson, J.N., Park, M.K.: Magnetostructural correlations in bis(μ2-phenoxide)-bridged macrocyclic dinuclear copper(II) complexes. Influence of electron-withdrawing substituents on exchange coupling. Inorg. Chem. 35, 3117 (1996)
Mac Lachlan, M.J., Park, M.K., Thompson, L.K.: Coordination compounds of Schiff-base ligands derived from diaminomaleonitrile (DMN): mononuclear, dinuclear, and macrocyclic derivatives. Inorg. Chem. 35, 5492 (1996)
Lintvedt, R.L., Kramer, L.S.: Reversible sequential transfer of two electrons at the same potential in bis(1, 3, 5-triketonato)dicopper(II) complexes and their diamine Schiff bases. Effect of sodium(+) and similar ions on the cyclic voltammetry. Inorg. Chem. 22, 796 (1983)
Gagne, R.R., Spiro, C.L., Smith, T.J., Hamann, C.A., Shiemke, A.K.: The synthesis, redox properties, and ligand binding of heterobinuclear transition-metal macrocyclic ligand complexes. Measurement of an apparent delocalization energy in a mixed-valent copper(I)copper(II) complex. J. Am. Chem. Soc. 103, 4073 (1981)
Mishra, A.K., Dogra, S.K.: Effects of solvents and pH on the spectral behavior of 2-(p-Aminophenyl)benzimidazole. Bull. Chem. Soc. Jpn. 58, 3587 (1985)
Bailey, N.A., Fenton, D.E., Lay, J., Roberts, P.B., Latour, J.M., Limosin, D.: Magnetic and electrochemical studies on binuclear copper(II) complexes derived from 2,6-diacetyl-4-methylphenol: the X-ray and molecular structure of an acyclic, binuclear Schiff-base complex. J. Chem. Soc., Dalton Trans. 2681 (1986)
Alexander, V.: Design and synthesis of macrocyclic ligands and their complexes of lanthanides and actinides. Chem. Rev. 95, 273 (1995)
Karunakaran, S., Kandaswamy, M.: Synthesis, electrochemical and magnetic properties of a series of new unsymmetrical macrocyclic binuclear copper(II) complexes. J. Chem. Soc., Dalton. Trans. 1595 (1994)
Bharathi, K.S., Sreedaran, S., Rahiman, A.K., Rajesh, K., Narayanan, V.: Synthesis, spectral, magnetic, electrochemical and kinetic studies of copper(II), nickel(II) and zinc(II) acetate complexes derived from phenol based ‘end-off’ ligands: effect of p-substituents. Polyhedron 26, 3993 (2007)
Roy, T.G., Hazari, S.K.S., Dey, B.K., Miah, H.A., Bader, C., Rehder, D.: Copper(II) and nickel(II) complexes of N,N-bis(2-hydroxyethyl)octamethyl-1,4,8,11-tetraazacyclotetradecane. Eur. J. Inorg. Chem. 4115 (2004)
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Financial support from University Grants Commission (RGN-JRF), New Delhi, is gratefully acknowledged. We are thankful to CDRI-Lucknow for providing FAB Mass spectral analysis.
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Sreedaran, S., Bharathi, K.S., Rahiman, A.K. et al. Synthesis, electrochemical, magnetic, catalytic and antimicrobial studies of N-functionalized cyclam based trinuclear copper(II) and nickel(II) complexes. J Incl Phenom Macrocycl Chem 66, 297–306 (2010). https://doi.org/10.1007/s10847-009-9621-y
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DOI: https://doi.org/10.1007/s10847-009-9621-y