Synthesis and anion binding studies of a new crown ether containing 2,2′-biimidazole

Functional Dimming of Pincer‐Shaped Bibenzimidazole‐Ruthenium(II) Complexes with Improved Anion‐Sensitive Luminescence

“…[5,6] A potent approach to detect anions through hydrogen bonds is to connect one or more acidic H-donor functions with a luminophore in a way that the absorption and emission properties of the latter are visibly influenced by the appearance and strength of the Hbond interaction. [7,8] On the one hand, polypyridyl-ruthenium(II) complexes are widely applicable molecular tools for the introduction of light in technological and biological applications [9][10][11][12] because of their well-known photophysical properties and generally long-lived excited states, in which light energy is absorbed and provided for chemical conversions. [13,14] On the other hand, the vast synthetic variability of the general tris(diimine) framework allows the adjustment of a chromophore for a distinct application.…”