If you are looking for the Spectroscopy course, it is no longer at this address. Now it has a permanent number Chem539 in the catalog and has moved to a new appropriate permanent address.
Chem 639 is a special topic graduate course. This year (SP 2007) it will be Experimental Physical Chemistry. In a few seconds, your browser should automatically forward you to the new location. If that fails, you'll have to click here by hand. Please update your links. Sorry for inconvenience.