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- W2007059960 abstract "Reaction of protonated tyrosine with the lowest electronically excited singlet state of molecular oxygen, 1O2 (a1Δg), is reported over the center-of-mass collision energy (Ecol) range from 0.1 to 3.0 eV, using an electrospray-ionization, guided-ion-beam scattering instrument, in conjunction with ab initio electronic structure calculations and direct dynamics trajectory simulations. Only one product channel is observed, corresponding to generation of hydrogen peroxide via transfer of two hydrogen atoms from protonated tyrosine. Despite being exoergic, the reaction is in competition with physical quenching of 1O2 and is very inefficient. At low Ecol, the reaction may be mediated by intermediate complexes and shows strong inhibition by collision energy. At high Ecol, the reaction efficiency drops to ∼1% and starts to have contribution from a direct mechanism. Quasi-classical trajectory simulations were performed to probe the mechanism at high collision energies. Analysis of trajectories shows that, at Ecol of 3.0 eV, a small fraction of hydrogen peroxide (25%) is produced via a direct, concerted mechanism where two hydrogen atoms are transferred simultaneously, but most hydrogen peroxide (75%) is formed by dissociation of hydroperoxide intermediates. According to ab initio calculations and trajectory simulations, collisions also lead to formation of various endoperoxides, and dissociation of endoperoxides may play a role in physical quenching of 1O2. The apparatus and experimental techniques are described in detail." @default.
- W2007059960 created "2016-06-24" @default.
- W2007059960 creator A5010220736 @default.
- W2007059960 creator A5085771179 @default.
- W2007059960 date "2009-09-25" @default.
- W2007059960 modified "2023-10-16" @default.
- W2007059960 title "Reaction of Protonated Tyrosine with Electronically Excited Singlet Molecular Oxygen (a<sup>1</sup>Δ<sub>g</sub>): An Experimental and Trajectory Study" @default.
- W2007059960 cites W1964816753 @default.
- W2007059960 cites W1966864079 @default.
- W2007059960 cites W1969223597 @default.
- W2007059960 cites W1969278838 @default.
- W2007059960 cites W1971531833 @default.
- W2007059960 cites W1974521537 @default.
- W2007059960 cites W1977664662 @default.
- W2007059960 cites W1981627301 @default.
- W2007059960 cites W1982307150 @default.
- W2007059960 cites W1984312993 @default.
- W2007059960 cites W1986412727 @default.
- W2007059960 cites W1988765421 @default.
- W2007059960 cites W1991662337 @default.
- W2007059960 cites W1994660555 @default.
- W2007059960 cites W1999997192 @default.
- W2007059960 cites W2000517736 @default.
- W2007059960 cites W2002479977 @default.
- W2007059960 cites W2008480228 @default.
- W2007059960 cites W2008840116 @default.
- W2007059960 cites W2009099070 @default.
- W2007059960 cites W2013422682 @default.
- W2007059960 cites W2013506474 @default.
- W2007059960 cites W2017661443 @default.
- W2007059960 cites W2020771599 @default.
- W2007059960 cites W2027891296 @default.
- W2007059960 cites W2036413039 @default.
- W2007059960 cites W2037266467 @default.
- W2007059960 cites W2041009422 @default.
- W2007059960 cites W2042125716 @default.
- W2007059960 cites W2045509728 @default.
- W2007059960 cites W2055722187 @default.
- W2007059960 cites W2056898873 @default.
- W2007059960 cites W2056925646 @default.
- W2007059960 cites W2058367515 @default.
- W2007059960 cites W2058691627 @default.
- W2007059960 cites W2060770758 @default.
- W2007059960 cites W2060805965 @default.
- W2007059960 cites W2064863303 @default.
- W2007059960 cites W2064916912 @default.
- W2007059960 cites W2065709175 @default.
- W2007059960 cites W2073292063 @default.
- W2007059960 cites W2073954285 @default.
- W2007059960 cites W2074425494 @default.
- W2007059960 cites W2074635587 @default.
- W2007059960 cites W2076971907 @default.
- W2007059960 cites W2078028724 @default.
- W2007059960 cites W2078843151 @default.
- W2007059960 cites W2083394137 @default.
- W2007059960 cites W2083448763 @default.
- W2007059960 cites W2085424032 @default.
- W2007059960 cites W2085957065 @default.
- W2007059960 cites W2087124478 @default.
- W2007059960 cites W2094435688 @default.
- W2007059960 cites W2099584619 @default.
- W2007059960 cites W2107358369 @default.
- W2007059960 cites W2128524906 @default.
- W2007059960 cites W2133564715 @default.
- W2007059960 cites W2138433877 @default.
- W2007059960 cites W2141167406 @default.
- W2007059960 cites W2149790826 @default.
- W2007059960 cites W2163877980 @default.
- W2007059960 cites W2174816172 @default.
- W2007059960 cites W2215736540 @default.
- W2007059960 cites W2228603637 @default.
- W2007059960 cites W2319630585 @default.
- W2007059960 cites W2952120074 @default.
- W2007059960 cites W411954668 @default.
- W2007059960 cites W4243799879 @default.
- W2007059960 cites W4255211517 @default.
- W2007059960 cites W4302557014 @default.
- W2007059960 cites W652522403 @default.
- W2007059960 doi "https://doi.org/10.1021/jp905978z" @default.
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