Fig. 1: FTIR spectrum of synthesized inhibitors.

a 4,5,6,7 -tetrabromo-2-(4-butyl phenyl) isoindoline-1,3-dione (TBID). b 4,5,6,7 -tetrabromo-2-octylisoindoline-1,3-dione (TOID). c 4,5,6,7 -tetrabromo-2-(2,5-di-tert-butyl phenyl) isoindoline-1,3-dione (TDID).