نتایج جستجو برای: photoisomerization process
تعداد نتایج: 1313173 فیلتر نتایج به سال:
The photoisomerization reaction of azobenzene in both directions have been investigated with a density functional theory based approach using the surface hopping procedure forced jumps. While cis-to-trans isomerization was found to be stepwise along CNNC dihedral angle, trans-to-cis observed one smooth step. further unbiased full-dimensional analysis revealed that, while angle is an important d...
In the G protein-coupled receptor rhodopsin, the conserved NPxxY(x)(5,6)F motif connects the transmembrane helix VII and the cytoplasmic helix 8. The less geometrically constrained retinal analogue 9-demethyl-retinal prevents efficient transformation of rhodopsin to signaling metarhodopsin (Meta) II after retinal photoisomerization. Here, we demonstrate that Ala replacement mutations within the...
2,2'-Dihydroxyazobenzene (DAB), 2,2'-azotoluene (AT) and azobenzene (AB) were isolated in argon and xenon matrices and their molecular structures and photochemical transformations were characterized by infrared spectroscopy and theoretical calculations. All these compounds can adopt the E and Z isomeric forms around the central CNNC moiety, which can be enriched by several conformational and ta...
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