Ion pair recognition by Zn-porphyrin/crown ether conjugates: visible sensing of sodium cyanide.
Synthesis and complexation behavior of ditopic neutral receptors composed of both a Lewis-acidic binding site (zinc porphyrin moiety) and a Lewis-basic binding site (crown ether moiety) are reported; the receptors bound only NaCN in a ditopic fashion with a color change, and in contrast other sodium salts bound to the receptors in a monotopic fashion without a color change.
School of Chemistry and Molecular Engineering, College of Natural Sciences, Seoul National University, Seoul 151-742, Korea.
Yeon-Hwan
YH
Kim
Jong-In
JI
Hong
D001665:Binding Sites; D003116:Color; D004988:Ethers, Cyclic / Q000737:chemistry*; D007477:Ions / Q000032:analysis / Q000737:chemistry / Q000493:pharmacokinetics*; D008665:Metalloporphyrins / Q000737:chemistry*; D012966:Sodium Cyanide / Q000032:analysis / Q000737:chemistry / Q000493:pharmacokinetics; D013057:Spectrum Analysis
D004988:Ethers, Cyclic; D007477:Ions; D008665:Metalloporphyrins; C017802:zinc hematoporphyrin; D012966:Sodium Cyanide