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ProblemSet10answers - Problem Set 10 Answers S343 Summer...

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Problem Set 10 Answers S343 Summer 2009 Smith Text chapter 13: See text Techniques in Organic Chemistry 2. The m/z base peak for 1-bromopropane is C 3 H 7 + , the propyl cation. 3. The most stable cations are the base peaks. The base peak at m/z 31 for 1-pentanol is CH 2 =OH + , and the base peak at m/z 45 for 2-pentanol is CH 3 CH=OH + . 4. The ratio of 3:1 for the m/z 139 and 141 peaks suggests that each fragment contains a chlorine atom. Both have the formula p -ClC 6 H 4 C O + . The base peak at m/z 105 is due to C 6 H 5 C O + . 6. The odd number molecular-ion peak suggests an odd number of nitrogen atoms, and the broad infrared band of medium intensity at 3300 cm -1 is diagnostic for a secondary amine. The compound is N -methylbenzylamine, C 6 H 5 CH 2 NHCH 3 . The m/z peak at 120 probably results from loss of H from the molecular ion to give (C 6 H 5 CH=NHCH 3 ) + . The m/z peak at 91, C 7 H 7 + , is the tropylium cation. The base peak at m/z 44 is the (CH 3 NH=CH 2 ) + cation. 8. It is likely that the major component of clove oil is eugenol, hit 6. Except for the height
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This note was uploaded on 01/18/2012 for the course CHEM S343 taught by Professor Benburlingham during the Summer '11 term at Indiana.

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ProblemSet10answers - Problem Set 10 Answers S343 Summer...

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