https://pisrt.org/psr-press/journals/easl-vol-2-issue-1-2019/degree-based-graph-invariants-for-the-molecular-graph-of-bismuth-tri-iodide/

: In the fields of chemical graph theory (CGT), mathematical chemistry and molecular topology, a topological index (TI) also known as a connectivity index is a type of a molecular descriptor that is calculated based on the molecular graph of a chemical compound. BiI 3 is an excellent inorganic compound and is very useful in qualitative inorganic analysis and topological indices of BiI 3 help to predict many properties like boiling point, heat of formation, strain energy, rigidity and fracture toughness and correlate the structure with various physical properties, chemical reactivity and biological activities. This paper computes several degree-based topological indices like multiplicative first Zagreb index, multiplicative second Zagreb index, multiplicative atomic bond connectivity index, multiplicative first and second hyper Zagreb index and multiplicative geometric arithmetic index for Bismuth Tri-Iodide chains and sheets.