for the following products
1-Iodo-1H,1H,2H,2H-perfluorooctane | 1-Iodo-2-(tridecafluorohexyl)ethane | 1H,1H,2H,2H-Perfluorooctyl iodide | Perfluorohexylethyl iodide, stab. with copper chip | Tridecafluoro-8-iodooctane and 1,1,1,2,2,3,3,4,4,5,5,6,6-Tridecafluoro-8-iodooctane