Quiz 2 - 2002 - Chemistry 439 Quiz II April 23, 2002 Name...

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Unformatted text preview: Chemistry 439 Quiz II April 23, 2002 Name Student Number This quiz consists of 25 points. Show all work to receive fill (or partial) credit. All questions refer the set of spectra shown on the next pages Note: 5 = singlet, d = doublet, t = triplet, q = quartet, 1. Briefly define the following 2D NMR experiments and explain what information can be gained from them (15 pts): A. COSY B. NOESY C. HMQC D. HMBC E. TOCSY 2. Provide an organic structure that is consistent with the following set of spectra. (10 pts). MASS 100.0 7448. m/z 1H NMR r—l—‘r-l—r—l—P-I— l_l—T""l_l—T-I—r—— r—l—‘r—l—T—F—r—1— —!—l—I—I—r—r-1—| 2420 2400 2240 2220 2190 21 70 B90 570 Hz W —'_'—'——f_T_T—fl 800 780 840 620 13CIDEPT 200 180 160 140 120 100 80 60 4O 20 (ppm) . INFRARED 110 100 so so 70 I 1 f so so % Transmman' ca 40 so \ * 20 10 0 4000 3500 3000 2500 2000 1 500 1 000 ‘ Wavenumbers (cm") COSY 1 MI 8.0 7.0 6.0 5.0 4.0 3.0 2.0 F2 ppm ...
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This note was uploaded on 10/08/2009 for the course CHEM 439 taught by Professor Falzone,c during the Spring '08 term at Pennsylvania State University, University Park.

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Quiz 2 - 2002 - Chemistry 439 Quiz II April 23, 2002 Name...

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