In　this　work,　we　report　a　series　of　cyclophane　fluorescent　sensors　based　on　acridine　combining　with　imidazolium　through　ether　linkages.　X-ray　crystal　structures　demonstrated　the　self-assembly　behavior　of　these　cyclophanes　in　the　solid　state　driven　by　hydrogen　bond　and　pi-pi　interactions.　Sensors　showed　excellent　selectivity　towards　Fe3+　in　aqueous　solution　(H2O/CH3CN　=　49:1,v/v)　and　H2PO4-　in　acetonitrile　solution　with　notable　color　change　under　UV　light,　evident　changes　were　also　noticed　in　fluorescence　spectra.　In　fluorescence　emission,　the　obvious　turn-off　was　induced　by　Fe3+　in　aqueous　solution　and　the　obvious　turn-on　as　well　as　bathochromic-shift　was　induced　by　H2PO4-　in　acetonitrile　solution.　(C)　2018　Elsevier　Ltd.　All　rights　reserved.