Synthesis, characterization and Magnetic Studies of Oxamido-Bridged Copper(II)-Iron(III) Heterobinuclear Complexes

• Autorzy: Li Y. , Zhu C. , Yan C. , Dou J. , Wang D.
• Języki publikacji: EN

Abstrakty

EN

Two new oxamido-bridged Cu(II)-Fe(III) heterobinuclear complexes of formulae [Cu(dmoxpn)Fe(bpy)2](ClO4)3 (1) and [Cu(dmoxae)Fe(bpy)2](ClO4)3 (2) have been synthesized, where bpy denotes 2,2_-bipyridine; while dmoxpn and dmoxae represent N,N_-bis[3-(dimethylamino)propyl]oxamido and N,N_-bis[2-(dimethylamino) ethyl]oxamido dianions, respectively. Based on elemental analyses, molar conductivity measurements, IR and electronic spectral studies, it is proposed that the two complexes have oxamido-bridged structures consisting of a copper(II) and an iron(III) ions, which have a square planar environment and a distorted octahedral environment, respectively. The two heterobinuclear complexes were further characterized by variable-temperature magnetic susceptibility (4.2~300 K) measurements and the observed data were simulated by the equation based on the spin Hamiltonian operator, H = JS S 1 2 2 , giving the exchange integral J = -18.2 cm-1 for (1) and J = -26.5 cm-1 for (2). The results revealed the occurrence of an intramolecular antiferromagnetic interaction between the adjacent iron(III) and copper(II) ions through the oxamido- -bridge within each molecule. The influence of the chelate ring arrangement around the copper( II) in the copper(II)-iron(III) heterobinuclear complexes on magnetic interactions between the metal ions of this kind of complexes is preliminarily discussed.

Słowa kluczowe

EN

mi-oxamido-bridge; copper(II); iron(II); heterobinuclear complexes; magnetic properties

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2005
• Tom: Vol. 79 / nr 8
• Strony: 1265--1273
• Opis fizyczny: Bibliogr. 30 poz., rys.

Twórcy

autor

Li Y.

• Marine Drug & Food Institute, Ocean University of China, 5 Yushan Road, Qingdao, Shandong, 266003, P. R. China
• Department of Chemistry, Liaocheng University, Liaocheng, Shandong, 252059, P. R. China

autor

Zhu C.

• Marine Drug & Food Institute, Ocean University of China, 5 Yushan Road, Qingdao, Shandong, 266003, P. R. China

autor

Yan C.

• Marine Drug & Food Institute, Ocean University of China, 5 Yushan Road, Qingdao, Shandong, 266003, P. R. China

autor

Dou J.

• Department of Chemistry, Liaocheng University, Liaocheng, Shandong, 252059, P. R. China

autor

Wang D.

• Department of Chemistry, Liaocheng University, Liaocheng, Shandong, 252059, P. R. China

Bibliografia

• 1.Gunter M.J., Mander L.N., Murray K.S. and Clark P.E., J. Am. Chem. Soc., 105, 6784 (1981).
• 2.Dessens S.E., Merrill C.L., Saxton R.J., Maria R.L., Lindsey J.W. and Wilson L.J., J. Am. Chem. Soc., 104,4357(1982).
• 3.Saalfrank R.W., Trummer S., Rcimann U., Chowdhry M.M., Hampel F. and Waldmann O., Angew. Chem., Int. Ed., 39, 3492 (2000).
• 4.Daiguebonnc C., Guillou D., Kahn M.L., Kahn O., Oushoom R.L. and BoubekeurK., Inorg. Chem., 40, 176 (2001).
• 5.Solomon F.I., Brunold T.C., Davis M.Z., Kemsley J.N.. Lee S.-K., Skulan A.J., Yang Y.S. and Zhou J., Chem. Rev., 100, 235 (2000).
• 6.Benelli C. and Galteschi D., Chem. Rev., 102. 2369 (2002).
• 7.Mukhopadhyay R. and Armstrong W.H., J. Am. Chem. Soc., 125. 13010 (2003).
• 8.Coronado E., Calan-Mascaros J.R., Gimenez-Saiz C., Gomez-Gareia C.J. and Ruiz-Perez C., Eur. J. Inorg. Chem., 2290 (2003).
• 9.Ojima 11, and Nonoyama K., Coord. Chem. Rev., 92, 85 (1988).
• 10.Yu P., Kahn O., Nakatani K., Codjovi E., Mathoniere C. and Sletten J., J. Am. Chem. Soc., 113, 6558 (1991).
• 11.Lloret F., Julve M., Ruiz R., Joumaux Y., Nakatani K., Kahn O. and Sletten J., Inorg. Chem., 32, 27 (1993).
• 12.Andres R., Brissard M., Gruselle M., Train C., Vaisserman J., Malezieux B., Jamet J.P. and Verdaguer M., Inorg. Chem., 40, 4633 (2001).
• 13.Mcssori L., Shaw J., Camalli M., Mura P. and Marcon G., Inorg. Chem., 42, 6166 (2003).
• 14.Li Y.T., Liao D.Z., Jiang Z.H. and Wang G.L., Polyhedron, 14, 2209 (1995).
• 15.Mathoniere C., Kahn O., Daran J.-C., Hilbig H. and Kohler H., Inorg. Chem., 32, 4057 (1993).
• 16.Benelli C., Fabrett A.C. and Giusti A., J. Chem. Soc., Dalton Trans., 409 (1993).
• 17.Ruiz R., Faus J., Lloret F., Julve M. and Joumaux Y., Coord. Chem. Rev., 193-195, 1069 (1999).
• 18.Cronin L., Mount A.R., Parsons S. and Robertson N., J. Chem. Soc., Dalton Trans., 1925 (1999).
• 19.Tercero J., Diaz C., Ribas J„ Ruiz E., Mahia J. and Maestro M., Inorg. Chem., 47, 6780 (2002).
• 20. Bethrent J.R. and Madan S.K., J. Inorg. Nucl. Chem., 20, 195 (1950).
• 21.Ojima H. and Yamada Y„ Bull. Chem. Soc. Jpn., 43, 3018 (1970).
• 22.Selwood P.W., “Magnetochemistry”, Intcrscicnce, N.Y., 78 (1956).
• 23.Gunter M.J., Berry K.J. and Murray K.S., J. Am. Chem. Soc., 106,4227 (1984).
• 24.Geary W.J., Coord. Chem. Rev., 7, 81 (1971).
• 25.Radecka-Paryzck W., Inorg. Chim. Acta, 34, 5 (1979).
• 26.Nakamoto K., “Infrared and Raman Spectra of Inorganic and Coordination Compounds", 3rd. edn., Wiley Interscience, NY, 1978.
• 27.Lever A.B.P., “Inorganic Electronic Spectroscopy”, 2nd ed., Elsevier, Amsterdam, 1984.
• 28.Kahn O. and Chariot M.F., Nouv. J. Chem., 4, 567 (1980).
• 29.Morgenstem-Badarau I., Rcrat M., Kahn O., Jaud J. and Galy J., Inorg. Chem., 21, 3050 (1982).
• 30.Nakahara A., Yamamoto H. and Matsumoto H., Bull. Chem. Soc. Jpn., 42, 1137 (1964).