Example 1
Dowex 50WX4, zinc acetate dihydrate and tetramethylammonium hydroxide were purchased from Acros organics. Bromoacetic acid, hydroxylamine hydrochloride, calcium chloride and hydrochloric acid were purchased from Alfa Aesar. Vanadyl bis-acetylacetonate and ferrocene were purchased from Strem chemicals and 2-propanol and dimethylsulfoxide were purchased from Fisher Scientific. All reagents and solvents were used without purification except DMSO, which was distilled over 4 A molecular sieves and degassed, and ferrocene, which was sublimated prior to use in electrochemical experiments. Tetrabutylammonium hexafluorophosphate was purchased from Alfa Aesar, recrystallized 3× from ethanol and water, and dried at 55° C. under vacuum prior to use in electrochemical experiments. Tetraethylammonium hexafluorophosphate was purchased from Alfa Aesar, recrystallized 3×, from water and dried at 55° C. under vacuum before use.
Infrared Spectroscopy was performed with a ThermoFisher is5 using an ATR attachment. UV-vis spectra were measured using a ThermoFisher Evolution 220 spectrometer. Static cell electrochemical experiments and cyclic voltammetry was carried using a Princeton Applied Research Versastat 3 potentiostat. X-ray crystallography was carried out with a Bruker D8 Venture X-ray instrument. NMR spectroscopy was carried out using a 400 MHz Bruker Advance III spectrometer.