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Updated: Feb 24, 2026

Isotopic Effect in Double Proton Transfer Process of Porphycene Investigated by Enhanced QM/MM Method
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単一のポルフィセンの分子における量子トンネリングによる二重水素移転の直接観測 Ag ((110) 表面

Matthias Koch1, Mark Pagan2, Mats Persson2

  • 1Department of Physical Chemistry, Fritz-Haber Institute of the Max-Planck Society , Faradayweg 4-6, Berlin 14195, Germany.

Journal of the American Chemical Society
|August 23, 2017
PubMed
まとめ

この研究では,スキャニングトンネル顕微鏡を用いて,ポルフィセンの分子における二重水素原子移転を直接観察した. この発見は 振動刺激と尖端操作による 段階的なトンネリングメカニズムを示しています

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Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
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Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
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