Three New/Old Vertex-Degree-Based Topological Indices of Some Dendrimers Structure

There is a natural linkage between the molecular structures and the bio-medical and pharmacology characteristics. A topological index can be considered as transformation of chemical structure in to real number and has been used as a predictor parameter. There are certain vertex-degree-based topological indices which has been used extensively in the chemical graph theory but recently no further attention is given to these topological indices. These are the reciprocal Randi c′ index (RR), the reduced reciprocal Randi c’ index (RRR) and the reduced second Zagreb index RM2. In this paper we determine reciprocal Randi c’ index (RR), the reduced second Zagreb index RM2, and the reduced reciprocal Randic’ index (RRR) of Poly (Propyl) Ether Imine, porphyrin and Zinc-Porphyrin dendrimers.


Adnan Aslam, Yasir Bashir, Muhammad Rafiq, Faiza Haider, Nazeer Muhammad, Nargis Bibi

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