Chemical compounds and drugs are often modeled as graphs where each vertex represents an atom of molecule and covalent bounds between atoms are represented by edges between the corresponding vertices. This graph derived from a chemical compounds is called its molecular graph. The reciprocal degree distance defined over this molecular graph has been shown to be strongly correlated to properties of the compounds. In this article, by virtue of molecular structural analysis, the reciprocal degree distance of 3 H is reported. The theoretical results achieved in this article illustrate the promising prospects of the application for the chemical and pharmacy engineering.
