Synthesis and redox activity of the ruthenium complexes based on 9-hydroxy-2,4,6,8-tetra-(tert.-butyl)phenoxazin-1-one ligands

Add time:07/21/2019    Source:sciencedirect.com

The redox-active bis-chelate hexacoordinate ruthenium complex 2 Ru(ONO)2 comprising two redox-active 2,4,6,8-tetrakis(tert.-butyl)-9-hydroxyphenoxazin-1-one ligands 1 was synthesized by coupling ruthenium trichloride with 1 or its thallium salt. Reduction of 2 with zinc amalgam produces its radical-anion 2a, which readily reacts with pyridine in aerobic conditions resulting in substitution of one of the tridentate hydroxyphenoxazinone ligand by three pyridine molecules and the formation of a salt of tris(pyridine)(tetra-(tert.-butyl)oxyphenoxazin-1-onate) Ru(II) cation 5. The structure of this salt was established by X-ray crystallography and its redox activity investigated using cyclic voltammetry. The mechanism of the RuIII/RuII conversion observed in this reaction was suggested based on the data of ESR, UV-Vis spectra and DFT B3LYP/6-311++G(d,p)/SDD calculations.

We also recommend Trading Suppliers and Manufacturers of TERT-BUTYL (3S)-3-AMINO-4-PHENYLBUTANOATE (cas 120686-17-1). Pls Click Website Link as below: cas 120686-17-1 suppliers

Prev:Dose- and time-dependent effects of 1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI), a serotonergic 5-HT2 receptor agonist, on local cerebral glucose metabolism in awake rats
Next:Synthesis and characterization of a 68Ga-labeled N-(2-diethylaminoethyl)benzamide derivative as potential PET Probe for malignant melanoma)