Synthesis and Structures of Two Lanthanide Complexes Containing a Mixed Ligand System: [Ln(Phen)2(L)3(HL)]·H2O [Ln = La, Ce; Phen = Phenanthroline; HL = Salicylic Acid] 


Vol. 34,  No. 11, pp. 3420-3424, Nov.  2013
10.5012/bkcs.2013.34.11.3420


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  Abstract

The reaction of LnCl3·7H2O [Ln = La (1), Ce (2)] with salicylic acid (HL) and 1,10-phenanthroline (Phen) at 20 oC in H2O/ethanol gave after work-up and recrystallization two novel lanthanide complexes with general formula [Ln(Phen)2(L)3(HL)]·H2O. Compounds 1 and 2 were characterized by IR and UV-Vis spectroscopy, TGA, CHN as well as by X-ray analysis. According to these results, compounds 1 and 2 are isostructural and contain Ln3+ ions with coordination number nine. Complexes 1 and 2 consist of two Phen, one neutral HL and three L anions (two L anions act as monodentate ligands and the third one is chelating to Ln3+). Thermal decomposition led to primary loss of the Phen molecules. Then HL molecules and finally L moieties left the material to give Ln2O3.

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  Cite this article

[IEEE Style]

E. Iravani, N. Nami, F. Nabizadeh, E. Bayani, B. Neumüller, "Synthesis and Structures of Two Lanthanide Complexes Containing a Mixed Ligand System: [Ln(Phen)2(L)3(HL)]·H2O [Ln = La, Ce; Phen = Phenanthroline; HL = Salicylic Acid]," Bulletin of the Korean Chemical Society, vol. 34, no. 11, pp. 3420-3424, 2013. DOI: 10.5012/bkcs.2013.34.11.3420.

[ACM Style]

Effat Iravani, Navabeh Nami, Fatemeh Nabizadeh, Elham Bayani, and Bernhard Neumüller. 2013. Synthesis and Structures of Two Lanthanide Complexes Containing a Mixed Ligand System: [Ln(Phen)2(L)3(HL)]·H2O [Ln = La, Ce; Phen = Phenanthroline; HL = Salicylic Acid]. Bulletin of the Korean Chemical Society, 34, 11, (2013), 3420-3424. DOI: 10.5012/bkcs.2013.34.11.3420.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949