Turaci, T.Ökten, M.2024-09-292024-09-2920151546-1955https://doi.org/10.1166/jctn.2015.3996https://hdl.handle.net/20.500.14619/9218The chemical graph theory is an important branch of mathematical chemistry. In this branch, there are many Topological Indexes. Let G = (V, E) be a simple molecular graph without directed and multiple edges and without loops, the vertex and edge sets of which are represented by V = (V, G) and E =EG, respectively. The edge eccentric connectivity index of G, denoted by c eG is defined by c eG = f?E (G) f deg Gf where (G) is eccentricity value and degGf is degree of an edge f in the graph G. In this paper, edge eccentric connectivity index of hexagonal cactus chains namely para-chain Ln, ortho-chain On and meta-chain Mn are determined. Copyright © 2015 American Scientific Publishers.eninfo:eu-repo/semantics/closedAccessDistanceEccentricityEdge Eccentric Connectivity IndexHexagonal Cactus ChainsArticle10.1166/jctn.2015.39962-s2.0-84960172811398010Q4397712