Spring 2003

This information effective for Spring 2003. Check with instructor the first day of class for any changes.

Chemistry

[CHEM-146A]

146A. Advanced Laboratory in Organic Chemistry

WF 1:00–5:00 p.m.,Thimann 271

Instructor: Rebecca Braslau (braslau@chemistry.ucsc.edu)
Office: Thimann 337, tel. 459-3087
Office Hours: Tentatively 1:30–2:30 Thursdays

Teaching Assistant: Greg O'Bryan
Office: Thimann 331, phone 459-4525
E-mail: obryan@chemistry.ucsc.edu

Prerequisite: successful completion of the Chemistry 108 (A, B, L, and M) series or Chemistry 112 (A, B, C, L, M, and N) series or consent of instructor

Required Assignments: There will be several written assignments to be done in a professional, complete manner. More details will be made available in class. There are two distinct laboratory experiments to be completed.

Tentative Schedule

1. Qualitative Organic Analysis: A Two-Day Experiment

A number of standard qualitative tests indicative of specific organic functional groups will be carried out on a series of known compounds. In this portion of the experiment, students will work in pairs. Following this, each student will work independently to identify two unknowns following a flowchart utilizing these qualitative tests. The lab report will consist of a record of the results of the qualitative tests on the unknowns, identification of the unknowns, and a clear mechanistic discussion of how each of the 12 qualitative tests work.

Due in class April 16, 2003 (one week after completion of the experiment!)

2. Identification of Three Unknowns

Each student will be given a unique mixture of three organic unknowns, which will be separated by standard laboratory procedures. After purification, each of the clean compounds will then be subjected to a variety of spectroscopic analyses (IR, ¹H and ¹³C-NMR, etc.) outlined in class. The student should use this information to successfully identify each of them. The lab report will consist of a record of the separation and purification schemes and yields obtained for each step, the fully assigned and interpreted spectra, and a discussion of the structural analysis. First draft is due Friday, June 6, although you are encouraged to turn it in earlier!

Final draft due June 9, 2003, before 12:00 noon (in Rebecca's office). Absolutely no reports will be accepted late!

3. Laboratory Notebook

An up-to-date, current laboratory notebook should be kept while doing experiments. The notebook will be checked periodically by the instructor or the TA and will be turned in on June 9 with the final assignment.

Grading:

Qualitative Analysis, 100 pts
Identification of Three Unknowns, 300 pts
Technical Skill/Lab Notebook (as evaluated by the instructor and TA), 100 pts

Note: all assignments must be completed on time to pass the course!

No Make-up Laboratory Sessions will be arranged!

Absences: If you absolutely need to miss a lab, pre-arrange your absence with the instructor. The two-day qualitative analysis experiment cannot be postponed; however, there is some flexibility in the unknown identification experiment. This does not mean that you are free to miss labs on a casual basis. Non-prearranged absences can be grounds for a No Pass or Fail in this class.

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