Abstract
Novel tetranuclear copper complexes, Cu4(OH)2(ClO4)3 (HA)·H2O (1) and Cu4(ClO4)5(H3B)·3H2O (2), were synthesized by reacting 1,5-bis(1′-phenyl-3′-methyl-5′-pyrazolone-4′)-1 ,5-pentanedione with 1,3-propanediamine and 2-hydroxyl-1,3-propanediamine in the presence of a template reagent copper ion. New [2+2] type open cyclic multidentate ligands are also obtained from the reaction (H4A and H6B stand for new compounds from 1,3-propanediamine and 2-hydroxyl-1,3-propanediamine, respectively). They each contain five C = O, three C = N and one NH2 groups. The complexes were characterized by elemental analyses, conductivity, FT-i.r. (micro-i.r., deconvolution technique), FAB-MS, e.s.r., electronic spectra and extended X-ray absorption fine structure (EXAFS). Copper ions in (1) are basically four coordinate with tetragonal geometry. The average coordination bond distances of Cu–N and Cu–O are 1.91 Å and 2.05 Å. In (2), copper ions are primarily five coordinate with square-based pyramidal geometry. The average coordination bond distances of Cu–N and Cu–O are 1.93Å and 2.08Å. Four copper atoms in molecules may be arranged tetragonally. Both the ligand field and the coordination bonds in complex (1) are stronger than those in (2). Investigations on variable temperature susceptibilities show that some antiferromagnetic exchange interaction exist in the complexes. The plots of χ−1 versus T obey the Curie-Weiss law only at low temperature. Preliminary results of a bioassay indicate that the two complexes have some antitumour activity in vitro.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
A. Harriman and R. Ziessel, Chem. Commun., 1707 (1996).
D. W. Bruce and D. O'Hare, Inorganic Materials, 2 Ed., Wiley, 1996.
L. Fabrrizzi and A. Poggi (Eds), Transition Metals in Supramole-cular Chemistry, Kulwer Academic Publishers, The Netherlands, 1994.
R. V. Slone and J. T. Hupp, Inorg. Chem., 36, 5422 (1997).
Y. Aratake, H. Okawa, E. Asato, H. Sakiyama, M. Kooleva, S. Kida and M. Sakamoto, J. Chem. Soc., Dalton Trans., 2941 (1990).
D. J. Cardenas, P. Gavina and J.-P. Sauvage, J. Am. Chem. Soc., 119, 2656 (1997).
X. Dong, F. Liu and Y. Zhao, Acta Chim. Sinica, 41, 848 (1983).
L. Yang and R. Yang, J. Lanzhou University (Nat. Sci.), 3, 134 (1988).
L. Yang and R. Yang, Polyhedron, 14, 507 (1995); X. Li, R. Yang, ibid, 11, 1545 (1992).
L. Yang and R. Yang, Acta Chim. Sinica, 47, 911(1989); Chem. J. Chin. Univ., 10, 225 (1989); J. Coord. Chem., 33, 301 (1994).
L. Yang, R. Yang, W. Dong and J. Liu, Acta Chim. Sinica, 47, 633 (1989).
L. Yang, J. Wu, Z. Xu, Y. Dong and X. Ju, Optronics Lasers, 6, 539 (1995).
L. Yang and R. Yang, J. Mol. Struc., 380, 75 (1996); L. Yang, J. Lin and J. Wu, J. Functional Materials, 29, 1182 (1998).
R. L. Lintvedt, M. D. Glick, B. K. Tomlonovic and D. P. Gavel, Inorg. Chem., 15, 1646 (1976); U. Casellato, D. Fregona, S. Sitran, S. Tamburini, P. A. Vigato and P. Zanello, Inorg. Chim. Acta, 95, 279 (1984).
L. Yang, J. Wu and X. Ju, Acta Chim. Sinica, 54, 374 (1996); L. Yang, G. Yao and J. Wu, Chinese J. Luminescence, 19, in press, (1998).
L. Yang, X. Ju and J. Wu Chinese Science Bulletin, 41, 1000 (1996).
L. Yang, S. Yan, G. Wang, H. Wang, R. Wang and X. Yao, Chinese J. Struc. Chem., 14, 117 (1995).
W. J. Geary, Coord. Chem. Rev., 7, 81 (1971).
K. Nakamoto, Infrared and Raman Spectroscopy of Inorganic and Coordination Compounds, 4th Ed., New York, Wiley, 1986.
J. Wu (Ed), Morden Fourier Transform Infrared Spectroscopy Technology and Applications, Beijing, Science and Technology Document Publishing House, 1994.
C. D. Olsen, G. Basu and R. L. Belford, J. Coord. Chem., 1, 17 (1971); G. R. Hedwig, J. L. Love and H. J. K. Powell, Aus. J. Chem., 23, 981 (1970).
S. Tyagi and B. J. Hathaway, J. Chem. Soc., Dalton Trans., 199, (1983).
A. A. G. Tomlison and B. J. Hathaway, J. Chem. Soc. (A), 1905 (1968); M. Duggan, N. Ray and B. J. Hathaway, J. Chem. Soc., Dalton Trans., 1342 (1980).
S. S. Eaton, K. M. More, B. M. Sawant and G. R. Eaton, J. Am. chem. Soc., 105, 6560 (1983).
R. C. Slade, A. A. G. Tomlinson, B. J. Hathaway and D. E. Billing, J. Chem. Soc. (A), 61 (1968); Hathaway and D. E. Billing, Coord. Chem. Rev., 5, 143 (1970).
W. Fujita, K. Awaga and T. Yokoyama, Inorg. Chem., 136, 196 (1997).
F. Denizot and R. Long, J. Immun. Methods, 89, 271 (1986).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Yang, L., Wu, J. & Ju, X. Tetranuclear copper complexes with new β-diketone and β-iminoketone-containing ligands. Transition Metal Chemistry 24, 340–345 (1999). https://doi.org/10.1023/A:1006952117118
Issue Date:
DOI: https://doi.org/10.1023/A:1006952117118