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Identification of a surface azide from the reaction of HN3with C(100)

Authors
Journal
Surface Science
0039-6028
Publisher
Elsevier
Publication Date
Volume
337
Identifiers
DOI: 10.1016/0039-6028(95)80040-9
Keywords
  • Diamond
  • Electron Energy Loss Spectroscopy
  • Hydrogen Azide
  • Low Index Single Crystal Surfaces
  • Molecule-Solid Reactions
  • Nitrides
  • Surface Chemical Reaction

Abstract

Abstract The reaction of hydrogen azide, HN 3, with bare and hydrogenated diamond (100) was studied using high resolution electron energy loss spectroscopy (HREELS). Hydrogen azide adsorbs molecularly on the hydrogenated diamond surface at 100 K and desorbs without reacting at < 273 K. In contrast, HN 3 reacts with C(100) at 100 K by breaking the NH bond to form CN 3 and CH surface species. The breaking of the NH bond is in contrast to the reaction mechanism of HN 3 on Si and Ge surfaces in which breaking of the HNNN bond is observed. We suggest that the stronger bonding of hydrogen to the diamond surface is responsible.

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