Molecules                             

H-H

ammonium cyanate

CH4

urea

BH3

dimethyl ether

BeH2

ethanol

ethane

butane

ethene

isobutane

ethyne

sulfate ion

 

 

The above are some small molecules you can start with. Click on the name to download the structure as a .mol file. Visualize it in one of the viewers shown on this page.

A good source of molecules is the ChemSpider website http://www.chemspider.com/. Search for molecule. When the 2D structure appears, click on the floppy disk icon below it to save the molecule as a .mol file. Click on the 3D icon to see the molecule in 3D in a small window.You can rotate and resize the molecule.

Here is a link to a library of macromolecules http://www.umass.edu/microbio/chime/pe_beta/pe/atlas/atlas.htm