EPR Index

Introduction to Theory

The recommended method for viewing these spectra, is to use a 32-bit plug-in for Netscape or Internet Explorer from Molecular Design Limited, Information Systems, Inc. (MDL). This includes our code for displaying JCAMP-DX files.

We will no longer be offering the NPJDX.DLL plugin or 32-bit application JCAMPVW.EXE from the web site here, but will instead be involved in upgrades to the CHIME plugin.
A condition of our contract is that a free version for student and academic use will always be available from MDL.

So, first install CHIME and then any of the spectra below can be displayed in your browser window. You can create your own pages by simply running a spectrum, exporting the data file as a JCAMP-DX file, then use the embed statement to load the file from your web page.

The following files are simulations of EPR spectra for various Cobalt(II) Schiff-bases, showing the changes in spectrum from four-coordinate, five-coordinate Co(II) to the adduct with dioxygen.

For further details, see the Laboratory Experiment C31L Expt 2.

Cosalen doped in Znsalen
Cosalen-pyr
Co7,7'-diethylsalen-O2

Another simulation, from some work on the vanadium VO²⁺ component of the Sacred Mushroom, (Amanita muscaria) is available as well.
An example of a spectrum containing Silver(II) can be found here.
A file contributed by Dr John Maher (Bristol University) has been converted to JCAMP-DX and shows a Copper(II) complex.

Created Feb 1995. Last modified 18th April-98.
URL http://wwwchem.uwimona.edu.jm:1104/spectra/EPRIndex.html