title: A triazole-bearing picket fence type nickel porphyrin as a cyanide selective allosteric host.
abstract: A triazole-bearing picket fence type nickel porphyrin (1) has been synthesized as a host compound for anion binding. Among the various anionic species examined, cyanide was the only one that affected a spectral change of 1. Moreover, 1 exhibited strong homotropic positive allosterism against cyanide binding due to an electronic effect as well as multiple hydrogen bonds formed between cyanide and the triazole groups.
authors.affiliation: Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Korea. wdjang@yonsei.ac.kr.
authors.forename: Kyeong-Im
authors.initials: KI
authors.lastname: Hong
authors.forename: Hongsik
authors.initials: H
authors.lastname: Yoon
authors.forename: Woo-Dong
authors.initials: WD
authors.lastname: Jang
mesh_terms: D000838:Anions / Q000737:chemistry; D003486:Cyanides / Q000032:analysis*; D006860:Hydrogen Bonding; D008665:Metalloporphyrins / Q000138:chemical synthesis / Q000737:chemistry*; D008968:Molecular Conformation; D009532:Nickel / Q000737:chemistry*; D011166:Porphyrins / Q000737:chemistry*; D013053:Spectrophotometry; D014230:Triazoles / Q000737:chemistry*
chemical_list: D000838:Anions; D003486:Cyanides; D008665:Metalloporphyrins; D011166:Porphyrins; D014230:Triazoles; C028285:porphyrin a; D009532:Nickel