Structural characterization and electrochemical properties of novel salicylidene phosphonate derivatives

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Mustafa DolazMehmet Tümer

Abstract

In this study, three novel salicylidene phosphonate ligands, diethyl (4-{[(1E)-(2-hydroxyphenyl)methylidene]amino}benzyl)phosphonate (HL1), diethyl (4-{[(1E)-(2-hydroxy-3-methoxyphenyl)methylidene]amino}benzyl)phosphonate (HL2) and diethyl (4-{[(1E)-(2,4-dihydroxyphenyl)methylidene]amino}benzyl)phosphonate (HL3) were synthesized and characterized by the analytical and spectroscopic techniques. We obtained their single crystals from the ethanolic solution. There are intramolecular phenol-imine hydrogen bonds in all three compounds between O1 and N1 atoms. The ligand HL3 contains a second phenol group and this is makes an intermolecular hydrogen bond with the phosphine oxide of a neighbouring molecule O2-O3 (under symmetry operation -x, 0.5+y, 0.5-z). In order to investigate the redox behaviours of the salicylidene phosphonate ligands (HL1-HL3), we were studied electrochemical properties of the ligands at the different pH and scan rates.

References

Sep 14, 2007·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Elif Ece Ilter, Zeynel Kiliç
Dec 25, 2007·Acta Crystallographica. Section A, Foundations of Crystallography·George M Sheldrick

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