Reversible control of hydrogenation of a single molecule

Satoshi Katano, Yousoo Kim, Masafumi Hori, Michael Trenary, Maki Kawai

研究成果: Article査読

64 被引用数 (Scopus)

抄録

Low-temperature scanning tunneling microscopy was used to selectively break the N-H bond of a methylaminocarbyne (CNHCH3) molecule on a Pt(111) surface at 4.7 kelvin, leaving the C-H bonds intact, to form an adsorbed methylisocyanide molecule (CNCH3). The methylisocyanide product was identified through comparison of its vibrational spectrum with that of directly adsorbed methylisocyanide as measured with inelastic electron tunneling spectroscopy. The CNHCH3 could be regenerated in situ by exposure to hydrogen at room temperature. The combination of tip-induced dehydrogenation with thermodynamically driven hydrogenation allows a completely reversible chemical cycle to be established at the single-molecule level in this system. By tailoring the pulse conditions, irreversible dissociation entailing cleavage of both the C-H and N-H bonds can also be demonstrated.

本文言語English
ページ(範囲)1883-1886
ページ数4
ジャーナルScience
316
5833
DOI
出版ステータスPublished - 2007 6月 29
外部発表はい

ASJC Scopus subject areas

  • 一般

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