On computation of PI indices for zinc oxide and zinc silicate

Abstract

The permeable materials known as metal–organic frameworks(MOFs) are distinctive porous chemical materials be made up of metal ions and organic ligands with marvelous chemical stability, high surface area, peculiar morphology, and large pore volume. Work on MOFs have great significance due to their versatile utilizations, such as energy storage devices with suitable electrode materials, separation of various gases, heterogeneous catalysis, purification, environmental hazards, biocompatibility, toxicology, and biomedical applications. Zinc-based MOFs are examined into biomedical applications due to its low toxicity. A topological index is a numerical value associated with a chemical structure that encodes information about its molecular topology which helpful in studying biological or physicochemical properties. In this article, we consider two different zinc oxide and zinc silicate related MOFs according to the number of increasing layers of metal and organic ligands together. We compute the distance based (bond additive) indices such as, Padmakar Ivan index, Additively Padmakar Ivan index, Multiplicatively Padmakar Ivan index and its polynomial for these frameworks are made. Moreover, a comparison is also included between the zinc oxide and zinc silicate related MOFs by using numerical values of PI related indices.