Fluorescence Quenching in BODIPYs Having Ir‐ and Rh‐Tethered Complexes

Abstract

Abstract:The effect of Rh-and Ir-centers on the optical properties of the BODIPY core has been studied. To this end, novel metal complexes tethered to BODIPY have been prepared through an easy and versatile procedure using N-directed C-H activation reactions. The organometallic moiety has a tremendous influence on the emissive properties of the BODIPY frag-

Systematic Modulation of the Fluorescence Brightness in Boron‐Dipyrromethene (BODIPY)‐Tagged N‐Heterocyclic Carbene (NHC)–Gold–Thiolates

“…The hypothesis described is supported by the results of the DFT calculations . Thus, the occurrence of the PET mechanism can be roughly estimated by comparing the relative energies of the FMOs of the fragments present in the dyads . As shown in Figure , the HOMO of the thiolate fragment of complex 1 is higher in energy than that of the corresponding BODIPY moiety regardless of the R substituent.…”

Chiral‐at‐Metal BODIPY‐Based Iridium(III) Complexes: Synthesis and Luminescence Properties

“…500 nm in compounds 5 and 6 is derived from the one electron promotion from the HOMO to the LUMO, which can be regarded as π and π* molecular orbitals fully delocalized in the indacene moiety (see the Figure 5). Analogous orbitals are involved in the HOMO-LUMO vertical transition in the parent BODIPY 8, [14] which is an additional proof of the exclusive involvement of the indacene moiety in the absorptions around 500 nm. It is noteworthy, that similarly to our previously reported compounds III, the contribution from the aryl fragment attached to the BODIPYs 5 and 6 is negligible.…”

“…[13] A similar study was carried out in BODIPYs having remote half-sandwich Ir(III) and Rh(III) moieties, III (Figure 1). [14] Figure 1. Previously studied Fischer metal carbene BODIPYs push-pull systems (I, II) and BODIPYs having remote half-sandwich Ir(III) and Rh(III) (III).…”

“…[ 13 ] A similar study was carried out in BODIPYs having remote half‐sandwich Ir(III) and Rh(III) moieties, III (Figure 1). [ 14 ]…”

Development of tethered dual catalysts: synergy between photo- and transition metal catalysts for enhanced catalysis

“…1). 40,41 While tethered BODIPY-metal complex species have been applied as photocatalysts, 42 therapeutics, [43][44][45][46] gas sensing [47][48][49][50][51] and as mechanistic probes, 48,[52][53][54] their use in dual catalysis is limited. 27 As such, if a catalytically active 'heavy atom' unit was tethered to BODIPY, this species could have the dual role of enhancing photocatalysis, as well as providing an independent catalytic site to promote alternative reactivity.…”