منابع مشابه
Probing the localized-to-delocalized transition.
Detailed understanding of the transition between localized and delocalized behaviour in mixed valence compounds has been elusive as evidenced by many interpretations of the Creutz-Taube ion, [(NH3)5Ru(pz)Ru(NH3)5]5+. In a review in 2001, experimental protocols and a systematic model to probe this region were proposed and applied to examples in the literature. The model included: (i) multiple or...
متن کاملSurface chemistry. Probing the transition state region in catalytic CO oxidation on Ru.
Femtosecond x-ray laser pulses are used to probe the carbon monoxide (CO) oxidation reaction on ruthenium (Ru) initiated by an optical laser pulse. On a time scale of a few hundred femtoseconds, the optical laser pulse excites motions of CO and oxygen (O) on the surface, allowing the reactants to collide, and, with a transient close to a picosecond (ps), new electronic states appear in the O K-...
متن کاملRetraction for Dougan et al., Probing osmolyte participation in the unfolding transition state of a protein.
Understanding the molecular mechanisms of osmolyte protection in protein stability has proved to be challenging. In particular, little is known about the role of osmolytes in the structure of the unfolding transition state of a protein, the main determinant of its dynamics. We have developed an experimental protocol to directly probe the transition state of a protein in a range of osmolyte envi...
متن کاملProbing osmolyte participation in the unfolding transition state of a protein
CHEMISTRY Retraction for “Probing osmolyte participation in the unfolding transition state of a protein,” by Lorna Dougan, Georgi Z. Genchev, Hui Lu, and Julio M. Fernandez, which appeared in issue 24, June 14, 2011, of Proc Natl Acad Sci USA (108:9759– 9764; first published May 25, 2011; 10.1073/pnas.1101934108). The authors note the following: “We wish to retract our article because interpret...
متن کاملProbing the transition state via photoelectron and photodetachment spectroscopy of H(3)O(-).
The H(3)O(-) anion has stable and metastable structures that resemble configurations in the vicinity of the transition state for the neutral reactions OH + H(2) <--> H(2)O + H. Photoelectron spectroscopy of this anion probes the neutral reaction dynamics in the critical transition-state region. Accurate quantum dynamics calculations of the photoelectron intensity and photodissociation product e...
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ژورنال
عنوان ژورنال: Nature
سال: 1992
ISSN: 0028-0836,1476-4687
DOI: 10.1038/358279a0