The discussion thus far has assumed a symmetrical lens for which the entrance and exit nodal planes, and for which the pupil magnification ( the ratio of exit pupil diameter to that of the entrance pupil ) is unity.
22.
But the F3-B1 interaction is definitely pi, as it's side-on overlap of p orbitals with a nodal plane right down the F3-B1 internuclear axis .-- talk ) 11 : 04, 19 April 2012 ( UTC)
23.
A set of contiguous atoms and their associated orbitals that react as one unit in a pericyclic reaction is known as a " component ", and each component is said to be " antarafacial " or " suprafacial " depending on whether the orbital lobes that interact during the reaction are on the opposite or same side of the nodal plane, respectively.
