Easy synthesis of ‘half-units’: their use as ligands or as precursors of non-symmetrical Schiff base complexes
✍ Scribed by Jean-Pierre Costes; Maria Isabel Fernandez-Garcia
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 667 KB
- Volume
- 237
- Category
- Article
- ISSN
- 0020-1693
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## Abstract The chiral [N,N,O] tridentate unsymmetrical Schiff bases **3−5** (aryl = phenyl, 1‐naphthyl, 2‐naphthyl) were synthesised easily in high purity and good yields. All the organic compounds were characterised by elemental analysis, mass spectrometry, IR, ^1^H and ^13^C NMR spectroscopy. Pa
A novel ligand HL (1), N,2-bis(1-(2-oxo-2H-chromen-3-yl)ethylidene)hydrazinecarbothioamide was synthesized through the condensation of 3-acetyl-2H-chromen-2-one and hydrazinecarbothioamide. This ligand was used to prepare new transition metal complexes of Cu(II), Ni(II) and Co(II). Characterization