Common Molecules for Site Design

Several people seem to agree with suggesting molecules for designers to consider for a site background or header or other graphics, e.g.

• benzene
• aspirin
• caffeine
• cyclopropane
• etc.

Having done this for a public art piece and my own research group website, I think the first suggestion would be to come up with a list of molecules. Given that, we can easily generate some graphics in 2D and 3D depictions for designers to consider.

So.. What would be some representative molecules for the site design?

(To clarify, I think illustrations of atomic and molecular orbitals would be great. Similarly, ionic solids, etc... Anything that speaks "chemistry" and shows atoms, bonds, orbitals, etc.)

• I am fond of the $\ce{C_{60}}$ fullerene and its unusual icosahedral symmetry, though it is certainly not a common compound. Perhaps some inspiration can be derived from Wikipedia user Ben Mills and his great collection of chemical structures. – Nicolau Saker Neto Oct 21 '14 at 14:16
• Does it have to be limited strictly to molecules or can we also consider hydrogen-like atomic orbitals (in conjunction with molecules and/or with just atoms alone)? – LordStryker Oct 21 '14 at 15:00
• @LordStryker I think orbitals and/or electron density would be great. I'm trying to see if I can get a set of nicely-rendered volumetric orbitals (i.e., "clouds", not "surfaces") – Geoff Hutchison Oct 21 '14 at 15:05