Isomeric forms of Cu(quinoline -2-carboxylate)2.H2O compound: Spectroscopic, and magnetic properties

• Autorzy: Żurowska B. , Mroziński J.
• Języki publikacji: EN

Abstrakty

EN

Spectroscopic and magnetic data of the compound Cu(2-qic)2 .H2O (1), where 2-qic is quinoline-2-carboxylate in the light of the known X-ray structure were studied. The geometry of CuN2O3 chromophore shows a very distorted five-coordinate stereochemistry intermediate between tetragonal pyramid and trigonal bipyramid resulting from the didentate N,O-bonded two chelate ligands and one water molecule. The crystal structure is stabilized by extended hydrogen-bonding network. Magnetic data reflect the molecular character of the compound with very weak exchange interaction (zJ' = - 0.23 cm-1), transmitted through H-bonds. The physico-chemical properties of 1 are compared with a recently reported forms 2 and 3 of identical stoichiometries Cu(quinoline-2-carboxylate)2.H2O obtained in an unusual oxidative P-dealkylation reaction. The compound 1 was prepared directly from quinaldinic acid.

Słowa kluczowe

EN

copper complexes; quinolinecarboxylate; isomerism; magnetism

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2005
• Tom: Vol. 23, No. 3
• Strony: 737--744
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Żurowska B.

autor

Mroziński J.

• Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wroclaw, Poland,

Bibliografia

• [1] Magneto-Structural Correlation in Exchange Coupled Systems, R.D. Willett, D. Gatteschi, O. Khan (Eds.), Reidel, Dordrecht, 1985.
• [2] SEGAL D., Chemical Synthesis of Advanced Ceramic Materials, Cambridge Univ. Press, Cambridge, 1989.
• [3] HAENDLER H.M., Acta Crystallogr., C42 (1986), 147.
• [4] GOHER M.A.S., MAUTNER F.A., Polyhedron, 12 (1993), 1863.
• [5] HAENDLER H.M., Acta Crystallogr. C52, (1996), 801.
• [6] BRAND U., VARHENKAMP H., Inorg. Chem., 34 (1995), 3285.
• [7] LI W., OLMSTEAD M.M., MIGGINS D., FISH R.H., Inorg. Chem., 35 (1996), 51.
• [8] DOBRZAŃSKA D., DUCZMAL M., JERZYKIEWICZ L.B., WARCHOLSKA J., DRABENT K., Eur. J. Inorg. Chem. (2004), 110.
• [9] ŻUROWSKA B., OCHOCKI J., MROZIŃSKI J., CIUNIK. Z., REEDIJK J., Inorg. Chim. Acta, 357 (2004), 755.
• [10] KöNIG E., Magnetic Properties of Coordination and Organometallic Transition Metal Compounds, Springer-Verlag, Berlin, 1966.
• [11] CARLIN R.L., Magnetochemistry, Springer-Verlag, Heidelberg, 1986.
• [12] ADDISON A.W., RAO T.N., REEDIJK J., VAN RIJN J., VERSCHOOR G.C., J. Chem. Soc. Dalton Trans. (1984), 1349.
• [13] DEACON G.B., PHILLIPS R.J., Coord. Chem. Rev., 33 (1980), 227.
• [14] NAKAMOTO K., Infrared in Raman Spectra of Inorganic and Coordination Compounds, Wiley, New York, 4th Edn., 1986.
• [15] HATHAWAY B.J., BILLING D.E., Coord. Chem. Rev., 5 (1970), 143.
• [16] NAKAMOTO K., MARGOSHES M. RUNDLE R.E., J. Am. Chem. Soc., 77 (1985), 6480.
• [17] SMART J.S., Effective Field Theories of Magnetism, W.B. Saunders Comp., Philadelphia, 1966, p. 24.
• [18] FISHER B.E., SIGEL H., J. Am. Chem. Soc., 102 (1980), 299.
• [19] JANIAK C., Angew. Chem. Int. Ed. Engl., 36 (1997), 1431