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Updated: Jul 12, 2026

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

孤立した表面タンタール原子上のダイナトロゲン解離

P Avenier1, M Taoufik, A Lesage

  • 1Université de Lyon, C2P2, Laboratoire de Chimie Organométallique de Surface UMR5265 CNRS-CPE-UCBL1 43, Boulevard du 11 Novembre 1918, BP 2077 F-69616, Villeurbanne Cedex, France.

Science (New York, N.Y.)
|August 25, 2007
PubMed
まとめ

研究者らは250°Cと大気圧で,シリカの単一のタンタール水素部位を使用して,二酸化窒素の割れ分を達成しました. この新しいメカニズムは,アンモニア合成と窒素固定の研究のための新しい経路を提供します.

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Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
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Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
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The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
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