Analyzing NMR spectra
This is a page for practice in using NMR spectra. This version should run properly under requires Netscape 4.x or Internet Explorer 5. The page is capable of three types of presentations. Each presentation contains brief instructions on its use, but you should read this page carefully before proceeding. To start the page, click on the link below. A new "framed" page will open. In the top frame there will be a three bubble options and an empty cell. The bottom frame will be empty. Clicking on the bubble in front of the option starts the execution. The options are:
- Assign Peaks: A spectrum and a structure will be displayed. To assign the spectrum, you must first click on a proton (or group of protons) in the structural formula. When you click on a proton, a
will appear slightly below and to the right of the proton chosen. If the structure contains equivalent protons, only one will be clickable. You will know that you are on a clickable proton when the 
converts to 
. Once you have selected a proton, click on the proper resonance in the spectrum. If the proper assignmment is made, the will be converted into a 
and the word "correct" will appear in the cell in the top frame. Otherwise the will remain and the word "incorrect" will appear.
- Identify Compound: A spectrum will be displayed and below the spectrum will be a list of five compounds. Click on the bubble in front of the compound corresponding to the displayed spectrum. Results appear in top frame.
- Assignment Tutor: The spectrum and structure are displayed as in the "Assign Peaks" option, but clicking on a resonance causes a to appear below the appropriate proton(s).
Note to Netscape users: Of late I have been encountering problems loading complex framed pages into Navigator, if I'm also running Internet Explorer. The problem goes away if I reboot the computer and run Navigator directly without having run IE. The pages always seem to load with IE and there are no errors in the page syntax to cause loading problems. Whether this is a result of some IE/Navigator conflict, I don't know, but it does cause one to ponder.
The current database contains over 150 compounds. When I am satisfied with the performance of the page, I'll bundle it all as a zip file for others to download. To help with this, I would greatly appreciate feedback and have a link below for that purpose. Thanks.
George Wiger
5/10/99
load the page
Feedback to George