Sulfur radical species form gold deposits on Earth
نویسندگان
چکیده
منابع مشابه
Bio-accumulation of major, trace, and rare earth elements by two Astragalus species grown on Agh-Dareh and Zarshouran gold deposits, Takab, NW Iran
The Agh-Dareh and Zarshouran mines are two known active gold deposits in Takab, NW Iran. In the present study, the potentials of two species of Astragalus (A. microcephalus from Agh-Dareh and A. effusus from Zarshouran mines), as the dominant plants grown in these areas, were assessed for the bio-accumulation of the major, trace, and rare earth elements (REEs). The plant and soil samples were c...
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Visible-light irradiation of phthalimide esters in the presence of the photosensitizer [Ru(bpy)3]2+ and the stoichiometric reducing agent benzyl nicotinamide results in the formation of alkyl radicals under mild conditions. This approach to radical generation has proven useful for the synthesis of small organic molecules. Herein, we demonstrate for the first time the visible-light photosensitiz...
متن کاملBiological radical sulfur insertion reactions.
ion at C-6 results in an allylic radical in which spin delocalization of the radical center makes it reactive with respect to the protein itself and thus results in covalent binding. b. Biotin Synthase is a Member of the RadicalSAM Family. Biotin synthase has been proposed to belong to the radical-SAM enzyme family for the following reasons.75 First it contains a (4Fe-4S)2+/1+ cluster required ...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2015
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1506378112