“…The design and synthesis of highly selective chemosensors for metal ions, such as Cu 2+ , Fe 3+ , Zn 2+ ,Cd 2+ , Mn 2+ , Hg 2+ and Pb 2+ , have attracted a great deal of attention in the scientific community [1][2][3][4][5][6][7][8]. Among these important metal ions, the trivalent form of iron (Fe 3+ ) is the most essential trace elements in biological systems, and it plays an important role in many biochemical processes at the cellular level [9][10][11][12].…”