A large number of subjects from the organic chemistry curriculum, to be used next to the textbook.

Enter this menu!

¤ Simple 3D structures, rotatable with the mouse

Examples: Stereochemistry, Food chemistry

¤ Animations of conformational changes,

some with clickable energy plot

Examples: Rotation in alkanes, cyclohexane chair-to-chair conversion, the relation between glucose open and closed structures

¤ Animations of reactions, with control buttons

Examples: Diels-Alder reactions, esterification, addition to double bonds, etc.

¤ Orbital pictures (VRML)

E.g. in the Diels-Alder reactions

These tutorials add a 3D aspect to molecular models, and even 4D if we consider the animations.

Most modules contain multiple choice questions with feedback, and some close with a quiz, to be submitted by e-mail.

Interactive web chemistry!
A molecule editor to build your own molecules, make your own animations of reactions!

Start the editor page!

The editor allows you to

¤ Construct molecules, starting from some basic structures

Replace hydrogens by functional groups from a menu,

minimize the energy, and view the result.

¤ Request for orbital pictures

The pictures are produced in VRML format.

¤ Perform conformational analysis:

Define bonds to rotate around, results in animated structures and a clickable energy plot.

One or two bonds can be selected, resulting in either a linear plot or a grid.

¤ Model reactions

Define bonds to increase in length,

Or two, to obtain a two-dimensional (clickable) energy plot.

¤ Refine the transition state in such a plot

And subsequently CARP: Calculate and Animate an entire Reaction Path: reactants --> transition state --> product.

There is a separate CARP page, a joint effort of the CMBI/Radboud University Nijmegen and the Organic Chemistry group at the University of Paderborn.