title: Sulfate selective anion recognition by a novel tetra-imidazolium zinc metalloporphyrin receptor.
abstract: Imidazolium groups have been successfully incorporated into the structure of a "picket fence" porphyrin molecule to produce a novel tetra-imidazolium zinc metalloporphyrin anion receptor. UV/visible spectroscopic studies reveal that this receptor is selective for sulfate anions, capable of strongly complexing sulfate in competitive water-DMSO (5 : 95) solvent mixtures. Cyclic and square wave voltammetric studies demonstrate the receptor's ability to sense a variety of anions electrochemically.
authors.affiliation: Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, UK.
authors.forename: David P
authors.initials: DP
authors.lastname: Cormode
authors.forename: Sean S
authors.initials: SS
authors.lastname: Murray
authors.forename: Andrew R
authors.initials: AR
authors.lastname: Cowley
authors.forename: Paul D
authors.initials: PD
authors.lastname: Beer
mesh_terms: D000838:Anions / Q000737:chemistry; D001665:Binding Sites; D018360:Crystallography, X-Ray; D004563:Electrochemistry; D007093:Imidazoles / Q000737:chemistry*; D049449:Luminescence; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008665:Metalloporphyrins / Q000138:chemical synthesis / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013237:Stereoisomerism; D013431:Sulfates / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
chemical_list: D000838:Anions; D007093:Imidazoles; D008665:Metalloporphyrins; D009942:Organometallic Compounds; D013431:Sulfates; D015032:Zinc