Synthesis and Magnetism of mi-Oxamido-bridged Cu2 II Ln III -type Heterotrinuclear Complexes (Ln=Ce, Nd, Sm, Eu, Gd, Tb, Dy, Er)

• Autorzy: Li Y. , Yan C. W.
• Języki publikacji: EN

Abstrakty

EN

Eight new Cu2 IILnIII-type (Ln = Ce, Nd, Sm, Eu, Gd, Tb, Dy, Er) heterotrinuclear complexes bridged by N,N_-bis(2-aminopropyl)oxamidocopper(II) [Cu(oxdn)], namely Cu2(oxdn)2Ln(NO3)3, have been synthesized and characterized by elemental analyses, molar conductivity measurements and spectroscopic (IR, UV, ESR) studies. Magnetic susceptibility measurements (4.2~300 K) and studies of Cu2(oxdn)2Gd(NO3)3 complex have revealed that the central gadolinium(III) and terminal copper(II) ions are ferromagnetically coupled with the exchange integral J(Cu-Gd) = +2.98 cm-1, while an antiferromagnetic coupling is detected between the terminal copper(II) metal ions with the exchange integral J(Cu Cu) ' _ = _0.75 cm-1, on the basis of the spin Hamiltonian operator [H 2J(S S S S ) 2J'(S S Cu1 Gd Cu2 Gd Cu1 Cu2

Słowa kluczowe

EN

copper(II)-Lanthanide(III)-copper(II); heterodinuclear complexes; ferromagnetic spin-coupling; synthesis

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2001
• Tom: Vol. 75, nr 3
• Strony: 355--362
• Opis fizyczny: Bibliogr. 28 poz., rys.

Twórcy

autor

Li Y.

• Department of Chemistry, Qufu Normal University, Qufu Shandong, 273165, P. R. China

autor

Yan C. W.

• Department of Biology, Qufa Normal University, Qufu Shandong, 273165, P. R. China

Bibliografia

• 1. Kahn O., Struct. Bond. (Berlin), 68, 89 (1987).
• 2. Kahn 0,, "Molecular Magnetism”, NY, Verlag-Chemie, (1993).
• 3. Matsumoto N., Ohba M., Mitsumi M., Inoue K, Hashimoto Y. and Okawa H Mol Cryst Liq Crvst. 233,299(1993).
• 4- Li Y.T., Yan C.W., Miao S.H. and Liao D.Z., Polyhedron, 15, 2491 (1998).
• 5. Joumaux Y., Sletten J. and Kahn O., Inorg.Chem., 24, 4063 (1985).
• 6. Caneschi A., Gatteschi D., Malendri M.C., Rey P. and Sessoli R., Inorg. Chem., 29, 4228 (1990),
• 7. Nakatani K., Sletten J., Hault-Desporte S., Jeannin S., Jeannin Y. and Kahn O., Inore Chem 30 164 (1991).
• 8. Ohba M, Tamaki H., Matsumoto N, and Okawa H., Inorg. Chem., 32, 5383 (1993).
• 9. Cortes R., Urtiaga M.K., Lezama L., Isabel M. and Rajo T., Inorg. Chem., 33, 829 (1994),
• 10. Bouayad A., Cabarrecq C.B., Trombe J.C. and Glesizes A., Inorg. Chim. Acta, 195, 193 (1992).
• 11. Abid K.K, and Fenton D.E., Inorg. Chim. Acta, 94, 73 (1984).
• 12. Bencini A., Benelli C., Caneschi A., Dei A. and Gatteschi D., Inorg. Chem., 25, 572 (1986).
• 13. Bencini A„ Benelli C., Caneschi A., Carlin R.L., Dei A. and Gatteschi D., J. Am Chem Soc 107 8128 (1985),
• 14. Minh N.Q., J. Am. Chem. Soc., 76, 563 (1993).
• 15. Li Y.T., Liao D.Z., Jiang Z.H. and Wang G.L., Polyhedron, 14, 2209 (1995),
• 16. Li Y.T., Jiang Z.H., Ma S.L., LiaoD.Z, Yan S.P. and WangG.L, Polyhedron, 23, 2781 (1993).
• 17. Li Y.T., Miao M.M., Liao D.Z., Jiang Z.II. and Wang G.L., Polish J. Chem., 69, 1402 (1995).
• 18. Selwood P.W., “Magnetochemistry”, Interscience, NY, pp. 78-79 (1956).
• 19. Ojima H. and Nonoyama K,, Coord. Chem. Rev., 92, 85 (¡988),
• 20. Geary W.J , Coord. Chem. Rev., 7, 81 (1971).
• 21. Liao D.Z., Li L.C., Jiang Z. H,, Yan S.P ., Cheng P. and Wang G.L., Trans. Met. Chem., 17,356 (1992),
• 22. Catehouse B.M., Livingstone S.E. and Nyholn R.S., J. Inorg. Nucl. Chem., 8, 75 (1958).
• 23. Nakamoto K., “Infrared and Raman Spectra of Inorganic and Coordination Compounds" 4 Edit Wiley, NY, 1986.
• 24. Hamer A.M. and Livingstone S.E., Trans. Met. Chem., 8, 298 (1983).
• 25. Kambe K, J. Phys. Soc. Jpn., 5,48 (1950).
• 26. Sakamoto M., Takagi M., ishimori I. and Okawa H„ Bull. Chem. Soc., 61, 1613 (1988).
• 27. Benelli C., Caneschi A., Gatteschi D., Guillou O, and Pardi L., Inorg. Chem., 29, 1750 (1990).
• 28. Andrah N., Ramade I., Codjovi E., Kahn O. and Trombe J.C., J. Am. Chem. Soc., 115, 1822 (1993).