Spec Quiz 5 R 2550 AU19.pdf - Callam/Paul Chemistry 2550 Autumn 2019 Spectroscopy Unknown Pre-Lecture Quiz 5 5 points – Thursday Lecture(DUE

Spec Quiz 5 R 2550 AU19.pdf - Callam/Paul Chemistry 2550...

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Callam/Paul Chemistry 2550 Autumn 2019 Q5.R 1/1 Spectroscopy Unknown Pre-Lecture Quiz 5 5 points – Thursday Lecture (DUE - 10/23/2019) Spectroscopy Unknown. The spectra and data provided were obtained from a pure organic molecule. For 1 H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants ( J -values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a “zoom-in” on an important part of the spectrum.
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Unformatted text preview: Submit your answer at: Mass Spectrum (not shown): [M] = 272 (100%) m/z IR Spectrum (not shown): 3300, 3090, 2985, 1685, 1610, 1500 cm-1 (all listed are strong (s) unless otherwise indicated) 1 H NMR Spectrum (400 MHz, CDCl 3 , 25 °C) 13 C NMR Spectrum (with DEPT), proton-decoupled (125 MHz, CDCl 3 , 25 °C) 1 2 3 4 5 6 7 8 9 PPM d d d d s s, s br s 1H 2 x 3H 2H 2H 2H 2H 1H 20 40 60 80 100 120 140 160 180 200 PPM (C) (CH)(CH) (C) (C) 2 x (C) (CH)(CH) (CH) 2 x (CH 3 )...
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