Article ID Journal Published Year Pages File Type
1234056 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2010 7 Pages PDF
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.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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