Syntheses, Structure and Magnetism of Heterobinuclear mi-Oxamido Cu(II)-Ni(II) Complexes Containing tacn as a Terminal Ligand

• Autorzy: Yau H. , Yan S. , Liao D. , Wang G. , Yao X. , Wang H.
• Języki publikacji: EN

Abstrakty

EN

Two new heterobinuclear complexes, namely Ni(tacn)Cu(oxpn)(ClO4)2.2H2O (1) and Ni(tacn)Cu(pmoxd)(ClO4)2.CH3OH (2), have been prepared from the planar fragments Cu(oxpn) and Cu(pmoxd) (tacn denotes 1,4,7-triazacyclononane, oxpn and pmoxd stand for the dianions of N,N'-bis(3-aminopropyl)oxamide and N,N'-bis(2-pyridylmethyl) oxamide, respectively). Compound 1 crystallizes in the triclinic system, space group Pî, with a= 8.573(2), b= 12.808(3), c = 13.122(3) A, alfa = 99.63(3), beta = 104.72(3) and gama = 96.45(3) graduate at 299 K, Z = 2. The Cu(II) ions are in square-pyramidal surroundings and the Ni(II) ions in octahedral surroundings. The temperature dependence of the magnetic susceptibilities of 1 has been studied in the 5-300 K range, giving the exchange integral J = -92.7 cm-1. This value, while close to those reported for other Cu(II)-Ni(II) complexes involving Cu(oxpn), represents the minimum exchange constant of such heterobinuclear system.

Słowa kluczowe

EN

heterobinuclear compounds; Cu(II)-Ni(II) complexes; oxamide; 1,4,7-triazacyclononane; X-ray structure; magnetism

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2004
• Tom: Vol. 78 / nr 7
• Strony: 911--917
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Yau H.

• Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China

autor

Yan S.

• Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China

autor

Liao D.

• Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China

autor

Wang G.

• Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China

autor

Yao X.

• Central Laboratory, Nankai University, Tianjin 300071, People’s Republic of China

autor

Wang H.

• Central Laboratory, Nankai University, Tianjin 300071, People’s Republic of China

Bibliografia

• 1. Kahn O., Adv. Inorg. Chem., 43, 179 (1996).
• 2. Nakatani K., Carriat J.Y., Joumaux Y., Kahn O., Lloret F., Renard J.P., Pei Y., Sletten J. and Verdaguer M„ J. Am. Chem. Soc., Ill, 5739 (1989).
• 3. Ribas J., Diaz C., Costa R., Tercero J., Solans X., Font-Bardia M. and Stoeckli-Evans H., Inorg. Chem., 37, 233(1998).
• 4. Ojima H. and Nonoyama K., Z Anorg. Allg. Chem., 429, 282 (1977).
• 5. Joumaux Y., Sletten J. and Kahn O., Inorg. Chem., 25, 439 (1986).
• 6. Zhang Z., Liao D., Jiang Z., Hao S., YaoX., WangH. and Wang G., Inorg. Chim. Acta, 173,201 (1990).
• 7. Diaz C., Ribas J., Costa R., Tercero J., Fallah M.S.E., Solans X. and Font-Bardia M., Eur. J. Inorg. Chem., 675 (2000).
• 8. Liao D., Li L., Jiang Z., Yan S., Cheng P., Wang G., Yao X. and Wang H., Transition Met. Chem., 17,356 (1992).
• 9. Ma S., Liao D„ Jiang Z„ Yan S. and Wang G„ Polyhedron, 12, 1523 (1993).
• 10. Liu B., Liao D., Jiang Z., Yan S., Wang G., Yao X. and Wang H., Chem. Lett., 819 (1999).
• 11. Tang J., Si S., Gao E., Liao D., Jiang Z. and Yan S., Inorg. Chim. Acta, 332, 146 (2002).
• 12. Ribas J., Garcia A. and Monfort M., Polyhedron, 10, 103 (1991).
• 13. Escuer A., Vicente R, Ribas J., Costa R. and Solans X., Inorg. Chem., 31, 2627 (1992).
• 14. Joumaux Y., Sletten J. and Kahn O., Inorg. Chem., 24,4063 (1985).
• 15. Ojama H. and Nonoyama K., Coord. Chem. Rev., 92, 85 (1988).
• 16. Morgenstem-Badarau M., Rerat M., Kahn O., Jaud J. and Galy J., Inorg. Chem., 21, 3035 (1982).