A convexity relation for the energies of certain polymers of unit cells of different sizes

摘要

A simple rule in the form of total energy inequalities is proposed for special polymers of very large unit cells, in terms of some related polymers of small unit cells. If energy data can be calculated for the latter regular polymers, these energy values lead to energy constraints on the polymers of very large unit cells. The actual evaluation of these constraints involves only a simple inspection of the nuclear charges and elementary calculations.