title: A molecular 'traffic light': highly selective cyanide sensing in aqueous media by a CpFe(indenyl)-functionalized borane.
abstract: The CpFe(indenyl)-functionalized borane {η(5)-(4-dimesitylboryl)indenyl}(η(5)-cyclopentadienyl)iron is available in two simple steps from organic precursors (in ca. 50% yield) and binds cyanide in protic media (1:1 thf-H2O) with an accompanying green to red/pink colour change. Extremely high selectivity over fluoride and hydroxide and a detection limit of ca. 10 ppm represent a highly desirable combination among borane derived cyanide receptors.
authors.affiliation: Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Rd, Oxford, OX1 3QR, UK. Simon.Aldridge@chem.ox.ac.uk.
authors.forename: Remi
authors.initials: R
authors.lastname: Tirfoin
authors.forename: Simon
authors.initials: S
authors.lastname: Aldridge
mesh_terms: D001880:Boranes / Q000138:chemical synthesis / Q000737:chemistry*; D003486:Cyanides / Q000032:analysis*; D005296:Ferrous Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D007192:Indenes / Q000138:chemical synthesis / Q000737:chemistry*; D000075163:Metallocenes; D008958:Models, Molecular; D013056:Spectrophotometry, Ultraviolet
chemical_list: D001880:Boranes; D003486:Cyanides; D005296:Ferrous Compounds; D007192:Indenes; D000075163:Metallocenes; C004998:ferrocene