Conjugation length can be determined by several factors, of which the simplest are the overall length of the conjugation path and the molecule's planarity.
We see reiterations of her distinctive style of figuration, in particular the bold combinatory of colors and shades to suggest silhouette or shape, planarity, and a dimensionality of striking flatness.
All the organic electron donors contain multiply conjugated heterocycles with a number of properties, including planarity, low ionization potential and good orbital overlap between heteroatoms in neighboring donor molecules.
In the planarity game, the player is presented with a circular layout of a planar graph, with all the vertices placed on a single circle and with many crossings.