Articles with "center shift" as a keyword



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Deficiency of water molecules in the crystallographic structure of vauxite

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Published in 2018 at "Physics and Chemistry of Minerals"

DOI: 10.1007/s00269-017-0913-2

Abstract: A vauxite mineral sample from Huanuni, Bolivia, was studied by XRD, TGA and Mössbauer spectroscopy. The XRD revealed the sample as having the typical triclinic structure of vauxite. The chemical formula was determined as (Fe0.88Mn0.01)Al1.99(PO4)2(OH)1.75(H2O)5.31,… read more here.

Keywords: center shift; deficiency water; doublet; structure vauxite ... See more keywords
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Defluorinative Alkylation of Trifluoromethylbenzimidazoles Enabled by Spin-Center Shift: A Synergistic Photocatalysis/Thiol Catalysis Process with CO2•.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c01533

Abstract: We describe a catalytic strategy for direct single C(sp3)-F bond alkylation of trifluoromethylbenzimidazoles under a photoinduced thiol catalysis process. The CO2 radical anion (CO2•-) proved to be the most efficient single-electron reductant to realize such… read more here.

Keywords: catalysis process; process co2; spin center; alkylation trifluoromethylbenzimidazoles ... See more keywords