Abstract
The square-planar complex [Cu(MIMH)(CH3CO2)](ClO4) (1) (MIMH = [(4-methylimidazol-5-yl)methylene]histamine) was prepared and structurally characterized. Complex 1 crystallizes in the monoclinic space group P21/n with a = 10.5331(10), b = 12.6177(10), c = 12.9773(10) Å, β = 107.710(10)°, V = 1643.0(2) Å3, and Z = 4. Single-crystal X-ray analysis reveals that the copper(II) atom in 1 has a distorted square-planar environment defined by three nitrogen atoms from the Schiff base ligand and one oxygen atom from the acetate group. The Cu—N bond lengths range from 1.950(3) to 2.015(3) Å and the Cu—O(1) bond length is 1.952(2) Å. The electronic spectra of 1 in aqueous solutions indicates that 1 forms adducts of square-pyramidal geometry with H2O. Cyclic voltammetry of 1 in DMF solution shows that there is some degradation of 1 upon reduction.
Similar content being viewed by others
References
Creighton, T.E. Proteins, Structures and Molecular Properties; W.H. Freeman: New York, 1984.
Spiro, T.G. Ed. Copper Proteins; Wiley: New York, 1981.
Sundberg, R.J.; Martin, R.B. Chem. Rev. 1974, 74, 471.
Karlin, K.D.; Zubieta, J. Eds. Copper Coordination Chemistry: Biological and Inorganic Perspectives: Adenine: Guilderland New York, 1983.
Sigel, H.; Martin, R.B. Chem. Rev. 1982, 82, 385.
Johnson, C.R.; Jones, C.M.; Asher, S.A.; Abola, J.E. Inorg. Chem. 1991, 30, 2120.
Bonamartini, A.C.; Bruni, S.; Cariati, F.; Battaglia, L.P.; Pelosi, G. Inorg. Chim. Acta 1993, 205, 99.
Sancho, A.; Gimeno, B.; Amigo, J.-M.; Ochando, L.-E.; Debaerdemaeker, T.; Folgado, J.-V.; Soto, L. Inorg. Chim. Acta 1996, 248, 153.
Oberhausen, K.J.; Richardson, J.F.; Buchanan, R.M.; Pierce, W. Polyhedron, 1989, 8, 659.
Long, L.-S.; Tong, Y.-X.; Yu, X.-L.; Chen, X.-M; Ji, L.-N; Mak, T.C.W. Trans. Met. Chem. 1999, 24, 49.
Tamura, H.; Imai, H. J. Am. Chem. Soc. 1987, 109, 6870.
Bhirud, R.G.; Srivastava, T.S. Inorg. Chim. Acta 1990, 173, 121.
Sheldrick, G.M. SHELXTL-PC, User's Manual; Siemens Analytical X-ray Instruments, Inc: Madison, WI, 1990.
Sheldrick, G.M. SHELXL-93, Program for Crystal Structure Refinement; University of Göttingen: Germany, 1993.
International Tables for X-ray Crystallography, Kluwer Academic Publisher: Dordrecht, 1992; Vol. C; Tables 4.2.6.8 and 6.1.1.4.
Coughlin, P.K.; Martin, A.E.; Dewan, J.C.; Watanabe, E.-I.; Bulkowski, J.E.; Lehn, J.-M.; Lippard, S.J. Inorg. Chem. 1984, 23, 1004.
Christanson, D.W.; Alexander, R.S. J. Am. Chem. Soc. 1989, 111, 6412. (b) Chen, X.-M.; Xu, Z.-T.; Huang, X.-C. J. Chem. Soc. Dalton Trans. 1996, 3465.
Bertini, I.; Banci, L.; Piccioli, M.; Luchinat, C. Coord. Chem. Rev. 1990, 100, 67.
Deacon, G.B; Philips, R.J. Coord. Chem. Rev. 1980, 33, 227.
Wu, C.-Y.; Su, C.-C. Polyhedron 1997, 16, 383.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Long, LS., Tong, YX., Chen, XM. et al. Synthesis, crystal structure and properties of square-planar acetato{[(4-methylimidazol-5-yl)methylene]histamine} copper(II) perchlorate. Journal of Chemical Crystallography 29, 409–412 (1999). https://doi.org/10.1023/A:1009558826050
Issue Date:
DOI: https://doi.org/10.1023/A:1009558826050