One method of deriving this statement is solving Schrodinger's equation for the condition psi of theta equals psi of 2 pi plus theta, giving a wavefunction proportional to e to the plus or minus i n pi. It can also be derived by noting that the systems in question contain one low-lying bonding molecular orbital followed by a series of paired MOs at higher energies. Hirsch, Chen, and Jiao developed a three-dimensional version of this statement that applies to fullerenes, while another method that leads to it assumes zero-differential overlap, a computational method named for Pariser, Parr, and Pople. It applies to planar systems with conjugated double bonds. For 10 points, name this rule that
One method of deriving this statement is solving Schrodinger's equation for the condition psi of theta equals psi of 2 pi plus theta, giving a wavefunction proportional to e to the plus or minus i n pi. It can also be derived by noting that the systems in question contain one low-lying bonding molecular orbital followed by a series of paired MOs at higher energies. Hirsch, Chen, and Jiao developed a three-dimensional version of this statement that applies to fullerenes, while another method that leads to it assumes zero-differential overlap, a computational method named for Pariser, Parr, and Pople. It applies to planar systems with conjugated double bonds. For 10 points, name this rule that states a molecule with 4n plus 2 pi electrons is aromatic, named for a German.
One method of deriving this statement is solving Schrodinger's equation for the condition psi of theta equals psi of 2 pi plus theta, giving a wavefunction proportional to e to the plus or minus i n pi.
 Huckel's rule