25130-86-3Relevant academic research and scientific papers
Theoretical and experimental characterization of a novel pyridine benzimidazole: Suitability for fluorescence staining in cells and antimicrobial properties
Carre?o, Alexander,Gacitúa, Manuel,Fuentes, Juan A.,Páez-Hernández, Dayán,Araneda, Carmen,Chávez, Ivonne,Soto-Arriaza, Marco,Manríquez, Juan M.,Polanco, Rubén,Mora, Guido C.,Otero, Carolina,Swords, Wesley B.,Arratia-Pérez, Ramiro
, p. 2362 - 2375 (2016)
Benzimidazoles presenting intramolecular hydrogen bonding interactions have been normally used to better understand the role of H-bonding in biological processes. Here, we present an experimental and theoretical study of a new compound [2,4-di-tert-butyl-
A bioinspired construct that mimics the proton coupled electron transfer between P680?+ and the Tyrz-his190 pair of photosystem II
Moore, Gary F.,Hambourger, Michael,Gervaldo, Miguel,Poluektov, Oleg G.,Rajh, Tijana,Gust, Devens,Moore, Thomas A.,Moore, Ana L.
supporting information; experimental part, p. 10466 - 10467 (2009/02/05)
A bioinspired hybrid system, composed of colloidal TiO2 nanoparticles surface modified with a photochemically active mimic of the PSII chlorophyll-Tyr-His complex, undergoes photoinduced stepwise electron transfer coupled to proton motion at the phenolic site. Low temperature electron paramagnetic resonance studies reveal that injected electrons are localized on TiO2 nanoparticles following photoexcitation. At 80 K, 95% of the resulting holes are localized on the phenol moiety and 5% are localized on the porphyrin. At 4.2 K, 52% of the holes remain trapped on the porphyrin. The anisotropic coupling tensors of the phenoxyl radical are resolved in the photoinduced D-band EPR spectra and are in good agreement with previously reported g-tensors of tyrosine radicals in photosystem II. The observed temperature dependence of the charge shift is attributed to restricted nuclear motion at low temperature and is reminiscent of the observation of a trapped high-energy state in the natural system. Electrochemical studies show that the phenoxyl/phenol couple of the model system is chemically reversible and thermodynamically capable of water oxidation. Copyright
Phenolate and phenoxyl radical complexes of Co(II) and Co(III)
Benisvy, Laurent,Bill, Eckhard,Blake, Alexander J.,Collison, David,Davies, E. Stephen,Garner, C. David,Guindy, Christina I.,McInnes, Eric J. L.,McArdle, Graeme,McMaster, Jonathan,Wilson, Claire,Wolowska, Joanna
, p. 3647 - 3653 (2007/10/03)
The new phenol-imidazole pro-ligands RLH react with Co(BF 4)2·6H2O in the presence of Et 3N to form the corresponding [CoII(RL) 2] compound (R = Ph (1), PhOMe (2), or
