Halogen- and hydrogen-bonding triazole-functionalised porphyrin-based receptors for anion recognition.
Iodotriazole and triazole anion recognition groups have been integrated into a picket-fence zinc(ii)-metalloporphyrin scaffold to produce receptors for anion recognition and sensing applications. (1)H NMR and UV/visible spectroscopic investigations reveal both host systems exhibit strong anion binding affinities in a range of solvent media. Importantly, the halogen-bonding iodotriazole-containing porphyrin-based host displays halide binding affinities substantially larger than the protic-functionalised analogue concomitant with a reduced strength of oxoanion complexation.
Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, UK. paul.beer@chem.ox.ac.uk.
Lydia C
LC
Gilday
Nicholas G
NG
White
Paul D
PD
Beer
D018360:Crystallography, X-Ray; D006219:Halogens / Q000737:chemistry*; D006860:Hydrogen Bonding; D008958:Models, Molecular; D008968:Molecular Conformation; D011166:Porphyrins / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D014230:Triazoles / Q000737:chemistry*
D006219:Halogens; D011166:Porphyrins; D012997:Solvents; D014230:Triazoles