Sulfate selective anion recognition by a novel tetra-imidazolium zinc metalloporphyrin receptor.

Journal article

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: Cormode, D; Murray, S; Cowley, A; Beer, P

• Publication status: Published
• Journal: Dalton transactions (Cambridge, England : 2003)
• Issue: 43
• Pages: 5135-5140
• Publication date: 2006-11-01
• DOI: 10.1039/b609817g
• EISSN: 1477-9234
• ISSN: 1477-9226
• Language: English
• Keywords: Zinc; Anions; Crystallography, X-Ray; Stereoisomerism; Models, Molecular; Imidazoles; Sulfates; Electrochemistry; Sensitivity and Specificity; Spectrophotometry, Ultraviolet; Organometallic Compounds; Luminescence; Molecular Conformation; Magnetic Resonance Spectroscopy; Metalloporphyrins; Binding Sites