Topological order in molecules 1. Molecular branching revisited

摘要: The development of the idea molecular branching is reviewed from first topological indices used to quantify skeleton, rules derived different graph invariants, and transferability graphs which place in order all alkanes paths increasing branching. It shown that thus induced matches a very high extent patterns alkane properties provides basis for their reliable calculation prediction. Generalized are defined new formulas decrease Wiener number increase self-returning walks degree four upon transformations