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Exo-Norborneol Ir Report

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Exo-Norborneol Ir Report
It must be noted that the actual undertaken procedure included a few differences from the ideal protocol. A total of 7 ml of extra water was added to the reaction before it was treated in the separatory funnel due to there being so much white precipitate that the mixture had turned to a paste as opposed to a liquid. The aqueous layer was accidentally not drained between adding the two different ether fractions, so the aqueous layer was drained after that and 10 ml of extra diethyl ether were added. Various increased amounts of water, sodium bicarbonate and sodium chloride solutions were added to treat this increased volume, and thus the final amount of product was larger than intended and was not as effectively dried with anhydrous sodium sulfate as was desirable. Because of this, the TA advised adding extra filter papers, which led to the absorption of the exo-norborneol into them. The exo-norbornenol condensed as liquid droplets on the petri …show more content…
In the functional group region, a broad but weak (~ 81 % transmittance) peak is present at 3306.16 〖cm〗^(-1), which corresponds to the stretch of the O-H bond; there is also a sharp peak at 2952.32 〖cm〗^(-1) that would correspond to the C-H bond stretch ( ~ 50% transmittance; the transmittance is not as low as it would be for a strong peak, but still considered prominent). As predicted, peaks corresponding to a double carbon-carbon bond at 1610-1680 〖cm〗^(-1) and carbonyl bonds at 1650-1750 〖cm〗^(-1) were not present. No other extraneous peaks were present either. The fingerprint region also looks very similar to the accepted exo-norborneol fingerprint, especially concerning the two main peaks at approximately 1000 and 1082 〖cm〗^(-1) (with 45% and 37.7% transmittance). This data suggests that this IR spectrum indeed represents a sample of exo-norborneol that was formed during this

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