Acetonitrile and methylene chloride were obtained from Fisher Scientific and distilled over P2O5 prior to use. All organic substrates for LFP kinetic studies were the best available purity from Aldrich Chemical Co. and were passed through a dry column of active alumina (Grade I) before use. Pyridine N-oxide was obtained from Aldrich and used as such. 2,6-Dichloropyridine N-oxide was prepared by oxidation of the corresponding pyridine precursors by H2O2 (50%) in trifluoroacetic acid according to the known procedure.50 5,10,15,20-Tetraphenylporphyrin free ligand (H2TPP)51 and its ruthenium(II) carbonyl complex RuII(TPP)(CO) (6 ) were prepared by literature methods.48 (link) Complexes 2 were prepared according to the literature procedure42 and purified by chromatography on basic alumina. All the compounds were characterized by UV-vis, 1H NMR and IR spectra, matching those reported data.
UV-vis spectra were recorded on an Agilent 8453 diode array spectrophotometer. IR spectra were obtained on a Bio-Rad FT-IR spectrometer. NMR was performed on a JEOL ECA-500 MHz spectrometer at 298K with tetramethylsilane (TMS) as internal standard. Chemical shrifts (ppm) are reported relative to TMS. X-band ESR spectra were recorded on a Varian E109E spectrometer equipped with a low-temperature dewar.
UV-vis spectra were recorded on an Agilent 8453 diode array spectrophotometer. IR spectra were obtained on a Bio-Rad FT-IR spectrometer. NMR was performed on a JEOL ECA-500 MHz spectrometer at 298K with tetramethylsilane (TMS) as internal standard. Chemical shrifts (ppm) are reported relative to TMS. X-band ESR spectra were recorded on a Varian E109E spectrometer equipped with a low-temperature dewar.