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Organic Chemistry I Lab: Reduction of a Ketone - Worksheet, Lab Reports of Organic Chemistry

This worksheet outlines the procedures for analyzing the infrared spectrum and 1h nmr spectrum of a sample during an organic chemistry lab experiment. Students are required to label the spectra, draw structures, and calculate relative amounts of compounds present.

Typology: Lab Reports

Pre 2010

Uploaded on 08/04/2009

koofers-user-0ip
koofers-user-0ip 🇺🇸

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CHEM 2102L - Organic Chemistry I Lab
The Reduction of a Ketone
Worksheet
1. Infrared Spectrum
a. Label your infrared spectrum with the following,
(1) your name
(2) the sample name, prep method and plate type
(3) the appropriate functional groups for any significant bands
b. Make an 8.5 x 11” copy of your infrared spectrum and staple the original into your
laboratory research notebook.
2. 1H NMR Spectrum
a. Label your 1H NMR spectrum with the following:
(1) your name
(2) 60 MHz 1H NMR
(3) in CDCl3 w/TMS
(4) the date the NMR was collected.
b. Draw the structures of cis- and trans-4-t-butylcyclohexanol on the NMR spectrum.
c. Label the significant signals with their chemical assignments.
d. To determine the relative amounts of each compound present, calculate the ratio between
the relative integration for the narrow multiplet (which represents 1 H on the minor
compound) and that for the wide multiple (which represents 1 H on the major
compound). Show ALL work on the spectrum.
e. Make an 8.5 x 11” copy of your 1H NMR spectrum and staple the original into your
laboratory research notebook.

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CHEM 2102L - Organic Chemistry I Lab The Reduction of a Ketone Worksheet

  1. Infrared Spectrum a. Label your infrared spectrum with the following, (1) your name (2) the sample name, prep method and plate type (3) the appropriate functional groups for any significant bands b. Make an 8.5 x 11” copy of your infrared spectrum and staple the original into your laboratory research notebook.
  2. 1 H NMR Spectrum a. Label your 1 H NMR spectrum with the following: (1) your name (2) 60 MHz 1 H NMR (3) in CDCl 3 w/TMS (4) the date the NMR was collected. b. Draw the structures of cis- and trans-4-t-butylcyclohexanol on the NMR spectrum. c. Label the significant signals with their chemical assignments. d. To determine the relative amounts of each compound present, calculate the ratio between the relative integration for the narrow multiplet (which represents 1 H on the minor compound) and that for the wide multiple (which represents 1 H on the major compound). Show ALL work on the spectrum. e. Make an 8.5 x 11” copy of your 1 H NMR spectrum and staple the original into your laboratory research notebook.