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Introduction Results and Discussion Conclusion Experimental General All reagents were provided by the Chemistry 108 laboratory and used without additional purification All solvents were removed by rotary evaporation All reaction products were isolated with vacuum filtration unless otherwise stated Infrared spectra were recorded on a Perkins-Elmer 1600 series FTIR Spectrometer using Nujol mulls and KBr pellets 1H and 13C nuclear magnetic spectra were taken in CDCl3 at 300 MHz on an AMX Spectrometer Ultra-violet-visible spectroscopy was performed using quartz cuvettes on a Hewlett-Packard 8452A Diode Array Spectrometer All thin layer chromatography was performed in a solvent system Synthesis of Ferrocene In a 100mL round-bottom flask iron II chloride tetrahydrate 5g mmol was dissolved in nitrogen degassed DMSO 30mL and stirred for 1h The solution was stoppered to prevent oxidation Diethyl ether 80mL and flake KOH 20g mmol was added to a 500mL three-neck flask equipped with an egg-shaped stir bar a stopper in the central neck a 100mL addition funnel fitted with a side arm adapter connected to a nitrogen source in one neck and a condenser in the other neck The mixture was flushed with nitrogen and then stirred vigorously Under a nitrogen-counter flow cyclopentadiene 425mL was added to the mixture Nitrogen flow was discontinued after ca 15 minutes and the iron II chloride solution was added dropwise via the addition funnel and the mixture was stirred for 30 minutes Additional diethyl ether ca 20mL was added to make the ethereal layer easier to decant The organic layer was washed with 2M HCl 2 X 20mL to neutralize the alkali and water 2 X 20mL The organic layer was poured into an evaporating dish and the ether was allowed to evaporate After evaporation 059 g of orange crystals were afforded A small sample of ferrocene was purified by sublimation A 1H NMR IR and UV-Vis spectrum was obtained Melting point
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