Neutral bimetallic rhenium(I)-containing halogen and hydrogen bonding acyclic receptors for anion recognition

141Neutral bimetallic rhenium(I) bis-triazole pyrimidine halogen bonding (XB) and hydrogen bonding (HB) acyclic anion receptors are prepared and 1H NMR titration investigations reveal the XB receptor exhibits significantly superior anion recognition behaviour, in particular for iodide in protic solvent media.