The　design　and　synthesis　of　artificial　receptors　capable　of　binding　and　sensing　anions　have　been　widely　explored　in　the　field　of　host-guest　chemistry.　Herein,　a　series　of　acyclic　ferrocene-based　imidazolium　receptors　3a　similar　to　3e　were　designed　and　synthesized.　All　the　receptors　were　prepared　by　reactions　of　1-(ferrocenylmethylene)imidazole　1　with　corresponding　dibromides　in　solvent　under　refluxing,　followed　by　anion　exchanges　with　NH4PF6.　The　structures　of　all　the　products　were　determined　by　IR,　H-1　NMR,　C-13　NMR,　MS　and　elemental　analysis.　The　crystal　structure　3e　was　confirmed　by　X-ray　crystallography,　and　it　was　clear　that　molecules　were　linked　by　C-H　center　dot　center　dot　center　dot　F　hydrogen　bonds　interactions.　The　interaction　between　these　receptors　and　various　anions　was　studied　by　electrochemical　measurements　and　H-1　NMR　spectroscopy.　The　receptors　3a　similar　to　3e　were　proven　to　be　highly　selective　and　sensitive　to　F-.　H-1　NMR　titrations　demonstrated　that　the　receptors　and　anions　form　1　:　1　complex,　and　the　receptors　displayed　a　strong　(C-H)(+)center　dot　center　dot　center　dot　X-　in　anion　recognition.　Receptor　3c　was　the　most　effective　receptor　to　bind　with　fluoride　ion　compared　to　the　others.