New Donor-Acceptor Porphyrin-Fullerene Dyades

Recent progress in organometallic porphyrin‐based molecular materials for optical sensing, light conversion, and magnetic cooling

“…Derived using the data [117] The donor-acceptor bonding of substituted fullerenes by MP/phthalocyanine resulted in the partial or full (depends on both a central atom and a macrocycle structure) decrease in the intensity of macrocycle's emission, if the one is available. [112,115] The data in Figure 9 demonstrate the occurrence of the electron transfer from a singlet excited tetraazaporphyrin/ porphyrin/phthalocyanine complex to an axially bonded fullerene base.…”

“…Both increases of structural regularity by combination of MPXs and pyridine derivative with the fullerene moiety in one supramolecule and synthesis of solution‐processable materials were used to produce SM‐OSC active layer materials in the works. [ 109–130 ] Here, a D–π–A chain was constructed based on MPXs axially bonded with pyridyl‐containing fullero[60]/[70]pyrrolidines where the role of donor, π‐spacer, and acceptor belongs to electron‐excessed aromatic tetrapyrrole macrocycle, central transition metal with asymmetrically filled shell, and the base with fullerene moiety, respectively (Table S8). Because you first need to know the regularity of donor–acceptor pair formation, its solubility and stability, and the self‐assembly thermodynamics/kinetics, the optoelectronic properties including calculation of excited states, photoelectrochemistry, and charge/electron transfer ability were obtained on examples of porphyrin–fullerene dyads and triads with In III (see Section 3), Mo V , Mn III , Co II , and Re V (Figure 7).…”

“…The chemical structure of the reaction products and intermediates was confirmed using spectral methods and quantum‐chemical calculations. Self‐assembly stoichiometry and a step mechanism were revealed from thermodynamic kinetic measurements, [ 15,69,121,113 ] whereas the dynamic of the macrocycle electron and geometric state during donor–acceptor bonding was monitored by origin of nuclear magnetic resonance (NMR) signal shifts [ 24,111,114,115,123 ] and quantum‐chemical calculation data. [ 114,115,117,120 ] IR spectra were used to establish both the presence of pyridyl‐substituted fulleropirrolodine in a dyad structure and intrasphere or extrasphere bonding of anionic group, X.…”

“…[ 114,115,117,120 ] IR spectra were used to establish both the presence of pyridyl‐substituted fulleropirrolodine in a dyad structure and intrasphere or extrasphere bonding of anionic group, X. [ 111,115 ] To the study of the PET and determine of parameters of the state with separated charges, methods of fluorescence, [ 24,109,114,122 ] photoelectrochemistry, [ 24,114,115,120,122,123 ] and femtosecond transient absorption were chosen. [ 117 ]…”

Effects of a Central Atom and Peripheral Substituents on Photoinduced Electron Transfer in the Phthalocyanine–Fullerene Donor–Acceptor Solution-Processable Dyads

“…In recent years, researchers have made significant progress in designing noncovalently linked light energy harvesting systems based on fullerene and zinc complexes of porphyrins/phthalocyanines. ,,,− However, there is little literature about fullerene-based axial ligated donor–acceptor systems with complexes of other metals especially those that are characterized by high reactivity of axial positions. The porphyrin/phthalocyanines complexes of aluminum, molybdenum, − iron, manganese, ,− and cobalt − may also be ideal candidates for solar energy conversion and storage applications. In this perspective, here we report new dyads based on cobalt­(II)/manganese­(III) phthalocyanines and phenylimidazole functionalized C 60 (Figure ).…”