Prof. Wenbin Lin
wlin@unc.edu
Kenan A500
Office hours by arrangement
Recitation: Wednesday, 12:00 - 12:50 pm, Chapman 211
Laboratory: M, T, W, R, 1:00 - 4:50 pm, Morehead Labs 304
Instrument Time/Office Hours: Morehead Labs 305
M, R, 2:00 pm - 5:00 pm; F, 2:00 pm - 4:00 pm
If time permits, students can analyze their samples during the lab period. Otherwise, students will have to sign up for a time outside their lab period. Wednesday sections have priority for Thursday instrument times. Thursday sections will have priority for Friday instrument times. Sign up sheets will be available during lab.
Teaching Assistants:
Office hours as indicated in ML 305
Erica Comstock: Section 401 and 405; Thursday, 2:00 pm - 4:00 pm
Allison Hulchanski: Section 402 and 406; Thursday, 4:00 pm - 5:00 pm, and Friday, 2:00 pm - 3:00pm
Laura Adduci: Section 403 and 407; Monday, 4:00 pm - 5:00 pm, and Friday, 3:00 pm - 4:00 pm
Marcela Wanderley: Section 404 and 408; Monday, 2:00 pm - 4:00 pm
Policy adopted by the Department of Chemistry faculty on September 9, 1977:
"Since all graded work (including homework to be collected, quizzes, papers, mid-term examinations, final examinations, research proposals, laboratory results and reports, etc.) may be used in the determination of academic progress, no collaboration on this work is permitted unless the instructor explicitly indicates that some specific degree of collaboration is allowed. This statement is not intended to discourage students from studying together or working together on assignments which are not to be collected."
PREREQUISITES:
Chem 251, Introduction to Inorganic Chemistry, and the sophomore organic/analytical laboratory sequence are prerequisites to this course. A student that has not had Chem 251 or an equivalent course will have a very difficult time in this laboratory.
LABORATORY MANUAL:
The laboratory manual for Chem 550L will be available at Student Stores.
LABORATORY NOTEBOOK:
You should purchase a PERMANENTLY-BOUND CARBON-COPY lab notebook (available at the bookstore). Carbon copy notebooks used in previous labs may be reused for this class. You will not be permitted to bring the lab manual to lab, so you will have to prepare in advance for your first lab (see the lab manual for detailed instructions).
ATTENDANCE:
Attendance is required for both lab and class. Having an exam in another class is not a valid excuse to miss lab. Labs missed due to illness must be validated by a doctor's excuse. All make-up labs must be cleared by your instructor.
INSTRUMENT LABORATORY:
You will be required to characterize the products you prepare during lab in the instrument laboratory. Your work in the instrument laboratory will take place outside of your regularly scheduled laboratory period. Sign-up sheets for instrument laboratory time will be posted during your laboratory time, if needed, next door to the synthesis laboratory. As for synthesis laboratory, you should come to instrument laboratory prepared. Although you will not be required to obtain data on all the compounds you prepare in laboratory, you will be expected to discuss the data you collect as well as data provided in supplemental data packets that will be available in the instrument laboratory. The instrument lab teaching assistant must initial the spectra you obtain as well as the entries that you made in your laboratory notebook during instrument lab.
UNDERGRADUATE NMR SPECTROMETER:
Students in Chem 550L will use the 300 MHz NMR spectrometer recently acquired for our laboratory program. This spectrometer is located in the NMR facility on the ground floor of Caudill Labs, room 044. Part of your lab time will be devoted to preparing NMR samples the day select experiments are completed. This spectrometer is equipped with a robot sample changer and automation software. Although you will be only minimally involved in data acquisition you will be responsible for processing and printing your own NMR data using the program Spinworks for Windows. Your data will be available for processing the following afternoon.
LAB EXPERIMENTS:
The laboratory experiments for Chem 550L will consist of five core experiments, a miniproject, and an independent project. The miniproject will provide practical experience necessary for successfully carrying out the independent projects. For the independent project experiment, you will develop a procedure and a characterization plan based on information in a literature reference. More information on the miniproject and the independent project experiments will be handed out later.
LAB WRITEUPS:
The general format for the lab reports is detailed in the introductory portion of your laboratory manual. These reports are considerably different than those required for your sophomore labs. A full write-up will not be required for every laboratory report. See the detailed syllabus for write-up requirements on particular labs. Information is available on the homepage to help you write up the "emphasized" section of a given laboratory report (signified by a bold and underlined section on the detailed syllabus), including examples. Follow the Lab Writeups link from the index page. Lab reports will be due Mondays at 5:00 pm on the date specified in the detailed syllabus, unless otherwise noted. You will be penalized 10% per calendar day for late lab write-ups. Only Dr. Gagné can grant extensions of the due date.
Weekly Quizzes - 10%
A brief quiz will be given during the recitation time that will cover the lab from the previous week and the experimental aspects of the lab to be discussed that day.
NMR Computer Assignment, NMR Quiz, Literature Assignment - 15%
Cumulative Hour Exam - 15%
An hour exam will be given after completion of all experiments. The exam will contain experimental and theoretical questions.
Core of Five Experiments - 40%
Independent Project - 20%
Literature Work, Plan, In-Lab Work, Write-up, Presentation