Direct quantitative measurement of the C=O center dot center dot center dot H-C bond by atomic force microscopy

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • Shigeki Kawai
  • Tomohiko Nishiuchi
  • Takuya Kodama
  • Peter Spijker
  • Remy Pawlak
  • Tobias Meier
  • John Tracey
  • Takashi Kubo
  • Ernst Meyer
  • Adam Foster

Research units

  • Osaka University
  • University of Basel
  • Kanazawa University
  • National Institute for Materials Science Tsukuba
  • Japan Science and Technology Agency

Abstract

The hydrogen atom-the smallest and most abundant atom-is of utmost importance in physics and chemistry. Although many analysis methods have been applied to its study, direct observation of hydrogen atoms in a single molecule remains largely unexplored. We use atomic force microscopy (AFM) to resolve the outermost hydrogen atoms of propellane molecules via very weak C=O center dot center dot center dot H-C hydrogen bonding just before the onset of Pauli repulsion. The direct measurement of the interaction with a hydrogen atom paves the way for the identification of three-dimensional molecules such as DNAs and polymers, building the capabilities of AFMtoward quantitative probing of local chemical reactivity.

Details

Original languageEnglish
Article number1603258
Pages (from-to)1-6
Number of pages6
JournalScience Advances
Volume3
Issue number5
Publication statusPublished - May 2017
MoE publication typeA1 Journal article-refereed

    Research areas

  • TOTAL-ENERGY CALCULATIONS, WAVE BASIS-SET, HYDROCARBON MOLECULE, HYDROGEN-ATOMS, GRAPHENE, SURFACE, TIPS

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