Pyridine aldoxime ligation to iridium (III) centre: An innocent ancillary ligand in a series of organometallic complexes
A series of Ir (III) complexes (4)-(6) of formula [Ir (C^ N) 2 (pyrald)] were designed and
synthesised from the reaction of [(C^ N) 2 Ir (μ-Cl) 2 Ir (C^ N) 2] and pyridine-2-aldoxime
(pyrald){C^ N= 1-phenylpyrazole (phpyr), 2, 5-diphenylbenzoxazole (phox) and 2, 3-
diphenylquinoxaline (phquinox)}. All the complexes were purified on a neutral alumina
oxide column and characterised through IR, 1 H NMR, UV-Vis, emission spectroscopy, mass
analysis and cyclic voltammetric studies. The molecular structure of [Ir (phquinox) 2 …
synthesised from the reaction of [(C^ N) 2 Ir (μ-Cl) 2 Ir (C^ N) 2] and pyridine-2-aldoxime
(pyrald){C^ N= 1-phenylpyrazole (phpyr), 2, 5-diphenylbenzoxazole (phox) and 2, 3-
diphenylquinoxaline (phquinox)}. All the complexes were purified on a neutral alumina
oxide column and characterised through IR, 1 H NMR, UV-Vis, emission spectroscopy, mass
analysis and cyclic voltammetric studies. The molecular structure of [Ir (phquinox) 2 …
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