Light-harvesting with panchromatically absorbing BODIPY–porphyrazine conjugates to power electron transfer in supramolecular donor–acceptor ensembles

TD-DFT calculations and MCD spectroscopy of porphyrin and phthalocyanine analogues: rational design of photosensitizers for PDT and NIR region sensor applications

“…The trends in the MO energies of the frontier π -MOs and in the HOMO-LUMO gaps of the analogous set of fused-ring-expanded phthalonitriles (39)(40)(41)(42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53)(54), shown in Figure 7, are also broadly similar to those predicted for the corresponding Pc (1-22) and aza-BODIPY (23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38) analogues. The alignments of the nodal planes of the a and s MOs (Figure 8) are similar to those of the corresponding tetraazapophyrin analogues (Figure 3), as would be anticipated based on their radial symmetry and the manner in which the 4 angular nodal planes lie on alternating sets of 8 atoms on the inner perimeter due to the M L = ± 4 properties.…”

Spacer controlled photo-induced intramolecular electron transfer in a series of phenothiazine-boron dipyrromethene donor–acceptor dyads

“…[42,47] Despite many reports of PTZ and BODIPY containing them separatelyare published in the literature, only a few cases, however, containing systems with BODIPY tethered to either one or two PTZ moieties and amalgamating the properties of both these chromophores have been reported. Some of these include, the photosynthetic antennacenter mimic involving BODIPY as energy funnelling entity to porphyrazine and PTZ as a sacrificial electron donor, [47] chiral BODIPY and aza-BODIPY-based D--A conjugated polymers involving PTZ as electron donor, [48,49] Recently, D'Souza et al has reported PTZ-BODIPY-C60 triads as photosynthetic reaction center models and studied the effect of solvents and the substitution on the photo-induced charge separation and recombination. [50] However, the study was limited to only two dyads i.e., PTZ connected to BODIPY either directly (no spacer) or via phenyl bridge and comprehensive photo-induced electron transfer studies w.r.t.…”

Emerging Spacers‐Based Ligands for Supramolecular Coordination Complexes

“…In addition to the triarylborane, BODIPY can also serve as a spacer that provides SCCs with excellent photophysical features (Chart 3) [62] . These complexes hold potential applications in photodynamic therapy, [63] bioimaging, [63a,64] light harvesting [65] and as chemosensors [64] …”