The Huckel's Rule: Among planar, monocyclic, fully conjugated polyenes, only those possessing (4n + 2) pi electrons, where n is an integer, will have special aromatic stability.
INSTRUCTIONS
1. Use the more and fewer carbon command buttons to increase and decrease the molecule.
2. Select a linear or cyclic hydrocarbon by clicking on the appropriate option button.
3. Vary the alpha, beta, and gamma text boxes and click on the calculate command button to view the molecule.
4. Click on the MO command button to vary the placement of the electrons to determine the most stable structure.