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- W2009174576 abstract "Chemisorbed allenyl/propargyl (two possible C3H3 isomers) intermediates on Ag(111) were isolated and identified by reflection−absorption infrared spectroscopy (RAIRS). Following the adsorption of propargyl bromide at 110 K, surface heating resulted in the cleavage of the CBr bond at 200 K (confirmed by X-ray photoelectron spectroscopy) and surface hydrocarbon species bearing the characteristic CCC stretching vibration in RAIRS, indicative of the surface-bound allenyl. This assignment was supported by the same experiment using bromopropadiene (allenyl bromide) as the precursor, in which the identical spectral change was observed. A distinct molecular transformation occurred around 300 K featuring the appearance of new IR bands, particularly the C⋮C stretch mode, suggesting that surface propargyl was formed. This propargylic intermediate remained thermally stable to 450 K before further decomposition and reactions on the surface." @default.
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- W2009174576 date "2002-02-01" @default.
- W2009174576 modified "2023-10-09" @default.
- W2009174576 title "Identification of Surface Allenyl and Its Transformation into Propargyl with C<sub>3</sub>H<sub>3</sub>Br Adsorption by RAIRS on Ag(111)" @default.
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- W2009174576 doi "https://doi.org/10.1021/la011534w" @default.
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