Author/Authors :
Nikoli?، نويسنده , , Sonja and Trinajsti?، نويسنده , , Nenad and Randi?، نويسنده , , Milan، نويسنده ,
Abstract :
We introduce a modification of the Wiener index. This modified Wiener index has a structural interpretation in terms of the greater weights of outer than inner bonds in a saturated hydrocarbon. Both the Wiener index and its modification together with the molecular polarity index lead to comparable structure-property models.