study on the one of applied distance-based topological invariants

The reciprocal complementary wiener number of a connected graph g is defined as , where d is the diameter of g and the distance d_g(x,y) is equal tothe length of a shortest path that connects vertices x and y. this concept has been successfully applied in the structure-property modeling of the molar hear capacity, standard gibbs energy of formation and vaporization enthalpy of 134 alkanes c6-c10. in this paper, we review our recent research on this distance-based topological invariant.