Tytuł artykułu
Autorzy
Identyfikatory
Warianty tytułu
Języki publikacji
Abstrakty
Three new copper(II)-oxovanadium(IV) heterodinuclear complexes bridged by dianions of N,N_-oxamidobis(propionato)cuprate, [Cu(obp)] and end-capped with 1,10-phenanthroline (phen), 5-nitro-1,10-phenanthroline (NO2-phen) or 5-chloro-1,10-phenanthroline (Cl-phen), have been synthesized and characterized; namely [Cu(obp)VO(phen)] (1), [Cu(obp)VO(NO2-phen)] (2) and [Cu(obp)VO(Cl-phen)] (3). The three complexes have not yet been isolated in crystalline form suitable for X-ray structure analysis, but based on elemental analyses, IR and electronic spectra studies, magnetic moments at room-temperature and molar conductivity measurements, these complexes are proposed to have an extended oxamido-bridged structure consisting of planar copper(II) and square-pyramidal oxovanadium(IV) ions. The heterodinuclear complexes (1) and (2) were further characterized by variable-temperature magnetic susceptibility (4.2~300 K) measurements and the magnetic data have been also used to deduce the indicated heterodinuclear structure. The results derived from least-squares fit of the experimental data have confirmed that the operation of a ferromagnetic interaction between the adjacent oxovanadium(IV) and copper(II) ions through the oxamido-bridge within each molecule. Based on spin Hamiltonian, _ _ _ H = 2JS S 1 2 Ĺ , the exchange integral (J) was evaluated as J = +11.68 cm-1 for (1) and J = +10.27 cm-1 for (2). The influence of the symmetry of the magnetic orbitals on the nature of the magnetic interaction between the paramagnetic centers is also discussed.
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
Strony
943--959
Opis fizyczny
Bibliogr. 24 poz., rys.
Twórcy
autor
- Marine Drug & Food Institute, Ocean University of China, 5 Yushan Road, Qingdao, Shandong, 266003, P. R. China
autor
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, P. R. China
autor
- Marine Drug & Food Institute, Ocean University of China, 5 Yushan Road, Qingdao, Shandong, 266003, P. R. China
Bibliografia
- 1. Kahn O., “Molecular Magnetism", Verlag-Chemie, NY, (1993).
- 2. Winpenny R.E.P., Chem. Soc. Rev., 27, 447 (1998).
- 3. Benelli C. and Gatteschi D., Chem Rev., 102, 2369 (2002).
- 4. Kahn M.L., Mathoniere C. and Kahn O., Inorg. Chem., 30, 3692 (1999).
- 5. Journaux Y., Kahn O., Zarembowitch J., Galy J. and Jaud J., J. Am. Chem. Soc., 105, 7585 (1983).
- 6. Kahn O., Struct. Bond. (Berlin), 68, 89 (1987).
- 7. Journaux Y., Sletten J. and Kahn O., Inorg. Chem., 24, 4063 (1985).
- 8. Yu P., Kahn O., Nakatani K., Codjovi E., Mathoniere C. and Sletten J., J. Am. Chem. Soc., 113, 6558 (1991).
- 9. Kahn O., Galy J., Journaux T., Jaud J. andMorgenstem-Badaraul., J. Am. Chem. Soc., 104,2165(1982).
- 10. Juive M., Verdaguer M., Chariot M., Kahn O. and Claude R., Inorg. Chim. Acta, 82, 5 (1984).
- 11. Li Y.T., Yan C.W., Miao S.H. and Liao D.Z., Polyhedron, 15, 2491 (199B).
- 12. Ojima H. and Nonoyama K., Coord. Chem. Rev., 92, 85 (1988).
- 13. Yu P., Kahn O., Sletten J., Renard J.-P., Georeges R., Gianduzzo J.-C., Curely J. and Xu Q., Inorg. Chem., 24,47(1985).
- 14. Selwood P.W., “Magnetochemistry”, Intersciences, NY, p. 78-79 (1956).
- 15. Geary W.J., Coord. Chem. Rev., 7, 81 (1971).
- 16. Farmer R.L. and Urbach F.L., Inorg. Chem., 13, 578 (1974).
- 17. Nakamoto K., “Infrared and Raman Spectra of Inorganic and Coordination Compounds", 4th Edit., Wiley, NY, (1986).
- 18. Lever A.B.P., “Inorganic Electronic Spectroscopy”, Ch. 9, Elsevier Publishing Co., Amsterdam (1968).
- 19. Sakamoto M., Takagi M., Ishimori T. and Okawa H., Bull. Chem. Soc. Jpn., 61, 1613 (1988).
- 20. Lambert S.L., Spiro C.L., Gagne R.R. and Hendrickson D.N., Inorg. Chem., 21, 68 (1982).
- 21. O’Connor C.J., Inorg. Chim. Acta, 127, 729 (1987).
- 22. Hay P.J., Thibeault J.C. and Hoffman R., J. Am. Chem. Soc., 97, 4884 (1975).
- 23. Kahn O. and Chariot M.F., Nouv. J. Chem., 4, 567 (1980).
- 24. Morgenstem-Badarau I., Rerat M., Kahn O., Jaud J. and Galy J., Inorg. Chem., 21, 3050 (1982)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ1-0021-0057