eng Science and Education Publishing Turkish Journal of Analysis and Number Theory 2333-1232 2017-01-05 5 1 23 26 10.12691/tjant-5-1-5 TJANT2017515 article S. Ghobadi Ghobadimath46@gmail.com 1 M. Ghorbaninejad 2 Department of Mathematics, Islamic Azad University, Qaemshahr Branch, Qaemshahr, Iran Department of Mathematics, Allame Tabarsi Institute, Qaemshahr, Iran In this paper we investigate first Zagreb index, F-index and F-coindex of the line graph of some chemical graphs using the subdivision concept. http://pubs.sciepub.com/tjant/5/1/5/tjant-5-1-5.pdf chemical graphs Zagreb index F-index F-coindex