Synthesis and fluorescent properties of aza-crown ether tethered BODIPY fluorophores

Supramolecular Luminescent Sensors

“…The addition of all other cations to 186 led to only small perturbations of its fluorescent profile, and competition experiments indicated that Cu 2+ could effectively be detected in the presence of other species. The emission of BODIPY-affixed 187 (Figure ) was nearly completely quenched by the presence of Cu 2+ , allowing for the detection of the analytes at concentrations as low as 2.4 μM with no interference from other cations . The Stern–Volmer constant for the interaction of 187 with Cu 2+ was found to be 1.43 × 10 5 M –1 .…”

“…The emission of BODIPY-affixed 187 (Figure 77) was nearly completely quenched by the presence of Cu 2+ , allowing for the detection of the analytes at concentrations as low as 2.4 μM with no interference from other cations. 1348 The Stern− Volmer constant for the interaction of 187 with Cu 2+ was found to be 1.43 × 10 5 M −1 .…”

A red fluorescent BODIPY probe for iridium (III) ion and its application in living cells

“…The widely used mechanisms for BODIPY probes are photoinduced electron transfer (PET), photoinduced intramolecular charge transfer (ICT) and resonance energy transfer (RET). Many BODIPY probes based on PET are often built as fluorophore–spacer–chelator constructs, in which appending the chelator at the meso -position of the BODIPY fluorophore decouples the two subunits [26–29]. Whereas, many BODIPY probes based on ICT often introduced the chelator in the 3, 5 and/or 1, 7 positions on the pyrrole moieties making ratiometric measurements possible [30–33].…”

“…fluorophore decouples the two subunits [26][27][28][29]. Whereas, many BODIPY probes based on ICT often introduced the chelator in the 3, 5 and/or 1, 7 positions on the pyrrole moieties making ratiometric measurements possible [30][31][32][33].…”

Tridentate phosphine ligands bearing aza-crown ether lariats

“…One of the most important properties of crown ether chemistry is the size-dependence of cation binding, largely dictated by the inner size of the macrocycle. In addition to alkali metals, these host molecules are able to bind a wide range of ionic and neutral species [2–5], and have been utilized as chemical modulators in a wide range of ion-selective applications [2,4,6–10]. In transition metal (TM) chemistry, secondary coordination sphere modifications have become an important way of modulating stoichiometric and catalytic activity [11–14].…”