Browsing CHEM Faculty Scholarship by Author "Schumacher, Amy Lea"
Now showing items 1-5 of 5
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Design and studies on supramolecular ferrocene-porphyrin-fullerene constructs for generating long-lived charge separated states
D'Souza, Francis; Chitta, Raghu; Gadde, Suresh; Islam, D-M Shafiqul; Schumacher, Amy Lea; Zandler, Melvin E.; Araki, Yasuyaki; Ito, Osamu (American Chemical Society, 2006-12-21)Supramolecular ferrocene-porphyrin-fullerene constructs, in which covalently linked ferrocene-porphyrin-crown ether compounds were self-assembled with alkylammonium cation functionalized fullerenes, have been designed to ... -
Face-to-face pacman-type porphyrin-fullerene dyads: design, synthesis, charge-transfer interactions, and photophysical studies
D'Souza, Francis; Maligaspe, Eranda; Karr, Paul A.; Schumacher, Amy Lea; El Ojaimi, Maya; Gros, Claude P.; Barbe, Jean-Michel; Ohkubo, Kei; Fukuzumi, Shunichi (John Wiley and Sons, 2008-01-01)Pacman-type face-to-face zinc-porphyrin-fullerene dyads have been newly synthesized and studied. Owing to the close proximity of the donor and acceptor entities, strong pi-pi intramolecular interactions between the porphyrin ... -
Multi-triphenylamine-substituted porphyrin-fullerene conjugates as charge stabilizing "antenna-reaction center" mimics
D'Souza, Francis; Gadde, Suresh; Islam, D-M Shafiqul; Wijesinghe, Channa A.; Schumacher, Amy Lea; Zandler, Melvin E.; Araki, Yasuyaki; Ito, Osamu (American Chemical Society, 2007-09-06)A new concept of charge stabilization via delocalization of the pi-cation radical species over the donor macrocycle substituents in a relatively simple donor-acceptor bearing multimodular conjugates is reported. The newly ... -
Photoinduced electron transfer in a Watson-Crick base-paired, 2-aminopurine:uracil-C60 hydrogen bonding conjugate
D'Souza, Francis; Gadde, Suresh; Islam, D-M Shafiqul; Pang, Siew-Cheng; Schumacher, Amy Lea; Zandler, Melvin E.; Horie, Rumiko; Araki, Yasuyaki; Ito, Osamu (Royal Society of Chemistry, 2007-02-07)A fluorescent reporter molecule, 2-aminopurine was self-assembled via Watson-Crick base-pairing to a uracil appended fullerene to form a donor-acceptor conjugate; efficient photoinduced charge separation was confirmed by ... -
Supramolecular triad and pentad composed of zinc-porphyrin(s), oxoporphyrinogen, and fullerene(s): design and electron-transfer studies
Schumacher, Amy Lea; Sandanayaka, Atula S. D.; Hill, Jonathan P.; Ariga, Katsuhiko; Karr, Paul A.; Araki, Yasuyaki; Ito, Osamu; D'Souza, Francis (John Wiley and Sons, 2007-01-01)By adopting a "covalent-coordinate" bonding approach, novel supramolecular pentad and triad molecules composed of zinc-porphyrin(s), fullerene(s), and oxoporphyrinogen redox-/photoactive entities have been constructed, and ...