Synthesis and structural characterization of a series of transition metal complexes with a tetradentate Schiff-base ligand derived from salicylaldehyde and 2-(2-aminoethylamino)ethanol

• Autorzy: Mikuriya M. , Matsunami K.
• Języki publikacji: EN

Abstrakty

EN

A series of transition metal complexes with 1-[(2-hydroxyethyl)amino]-2-(salicylideneamino)ethane (H2hase), [V(Hhase)2]Cl (1), [VO2(Hhase)] (2), [Cr(Hhase)2]Cl (3), [Mn(Hhase)2]Cl (4), [Fe(Hhase)2]Cl (5), [Co(Hhase)2]Cl (6), [Co(Hhase)2]Br (7), [Co(Hhase)2]I (8), [Co(Hhase)2]NO3 (9), [Co(Hhase)2]NCS (10), [Co(Hhase)2]ClO4 (11), and [Co(Hhase)2]CH3CO2.H2O (12), have been synthesized by template reactions of salicylaldehyde and 2-(2-aminoethylamino)ethanol with metal salts and characterized by measurements of the infrared and electronic spectra, and magnetic moments. The molecular structures of these complexes were determined by the singlecrystal X-ray structure analysis. All the complexes except for 2 are mononuclear with an octahedral metal(III) ion, where the two Hhase ligands act a meridional tridentate chelate forming hydrogen bondings with counter anion. The two Hhase ligands are arranged so that the imino-nitrogen atoms are trans while the phenoxo-oxygen atoms and the aminonitrogen atoms are cis, respectively. Complex 2 is dinuclear of vanadium(V) with dioxobridges. A similar template reaction with copper(II) afforded Cu(salen) (H2salen = N,N'-bis(salicylidene)ethylendiamine) (13) in a low yield.

Słowa kluczowe

EN

Schiff base; first transition metal complex

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2005
• Tom: Vol. 23, No. 3
• Strony: 773--792
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Mikuriya M.

autor

Matsunami K.

• Department of Chemistry and Open Research Center for Coordination Molecule-based Devices, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan,

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