title: Isothiocyanato-calix[4]phyrin-(1,1,1,1): a useful intermediate for the synthesis of derivatised anion sensors.
abstract: A calix[4]phyrin-(1,1,1,1) substituted with a 4-isothiocyanatophenyl group has been synthesised and used to attach the macrocycle to a solid support. The NCS group can also be used to further functionalise the calix[4]phyrin-(1,1,1,1) by reaction with amines and amino acids. Stability constants for anion binding by the calix[4]phyrin-(1,1,1,1) are reported and these show a clear ability to differentiate F(-) and HSO(4)(-) from Cl(-), Br(-), I(-) which can be detected by both NMR and UV-visible spectroscopy.
authors.affiliation: Department of Chemistry, University of Hull, Kingston-upon-Hull, E. Yorks, UK.
authors.forename: Sushil C
authors.initials: SC
authors.lastname: Jha
authors.forename: Mark
authors.initials: M
authors.lastname: Lorch
authors.forename: Robert A
authors.initials: RA
authors.lastname: Lewis
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Archibald
authors.forename: Ross W
authors.initials: RW
authors.lastname: Boyle