IRUnknown - Unknown Identification via Spectroscopy Wendy...

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Unknown Identification via Spectroscopy Wendy Mei Tuesday 6pm-915pm Grade Sheet Predicted Structure of Unknown Calculated Index of Hydrogen Deficiency: C-H/2-X/2+N/2+1= 5-6/2-0+0+1= 3 This number shows that there is a ring and two double bonds in the structure of this molecule because the ring is equal to one degree of unsaturation and the two double bonds count as one degree of saturation each. Mass Spectroscopy The molecular weight of the compound is 114g/mol, displayed by the last peak shown at 114m/z. The different numbers listed above each of the peaks represent separate parts of the compound. For example, 15m/z usually represents a CH 3 and 86m/z represents C 4 H 6 O 2 .
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IR Spectroscopy IR absorbance values show what types of bonds of functional groups are within the compound. 2981cm -1 peak shows a medium broad band that represents C-H bonds in the compound. 1830 cm -1 and 1758cm -1 peaks show C=O bonds 1230cm -1 and 1033cm -1 peaks show C-O bonds
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1 H NMR The strong peak shown has a chemical shift around 2.4ppm with an integration of 4
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This note was uploaded on 03/16/2012 for the course BIO 301 taught by Professor Tepperman during the Spring '12 term at University of Cincinnati.

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IRUnknown - Unknown Identification via Spectroscopy Wendy...

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