通过共振非弹性 X 射线散射观察到甲基甲酰胺中的 R-基团稳定化。
R-Group stabilization in methylated formamides observed by resonant inelastic X-ray scattering.
机构信息
Department of Physics, University of Hamburg and Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany.
Institute for Methods and Instrumentation in Synchrotron Radiation Research G-ISRR, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany.
出版信息
Chem Commun (Camb). 2022 Aug 4;58(63):8834-8837. doi: 10.1039/d2cc00053a.
The inherent stability of methylated formamides is traced to a stabilization of the deep-lying σ-framework by resonant inelastic X-ray scattering at the nitrogen K-edge. Charge transfer from the amide nitrogen to the methyl groups underlie this stabilization mechanism that leaves the aldehyde group essentially unaltered and explains the stability of secondary and tertiary amides.
深内层σ-骨架的稳定化导致甲酰胺甲基化形式的固有稳定性，这可通过氮 K 边共振非弹性 X 射线散射来追踪。酰胺氮向甲基的电荷转移是这种稳定机制的基础，该机制使醛基基本保持不变，并解释了仲胺和叔胺的稳定性。
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