Structure and orientation of NH3 on clean and oxygen-precovered Al(111)

✍ Scribed by Falko P. Netzer; Theodore E. Madey

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 492 KB
• Volume: 88
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(82)87095-4

✦ Synopsis

On clean AI(111) bonding of molecular NH 3 occurs via the N atom with a wide distribution of tilt angles of the molecular axis with respect to the surface normal and with random azimuthal orientation. Fractional monolayers of chemisorbed oxygen induce a high degree of local azimuthal orientation of the H atoms in adsorbed NH3, in the absence of long-range order.