Reflection absorption infrared study of the adsorption of dimethylamine on copper (1 1 0) and nickel (1 1 1) surfaces

The adsorption of dimethylamine on Cu(1 1 0) and Ni(1 1 1) has been studied by reflection absorption infrared spectroscopy. For Cu(1 1 0), adsorption was molecular at 80 and 300 K and for submonolayer dimethylamine the appearance of A′ and not A″ modes indicated C s symmetry. Similar bonding was fou...

Full description

Saved in:
Bibliographic Details
Published in:Surface science 2006-06, Vol.600 (11), p.2364-2371
Main Authors: Chalker, S., Haq, S., Birtill, J.J., Nunney, T.S., Raval, R.
Format: Article
Language:English
Subjects:
Chemisorption
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Copper
Cross-disciplinary physics: materials science
rheology
Dimerization
Dimethylamine
Exact sciences and technology
Hydrogen-bonding
Methylaminocarbyne
Nickel
Physics
Reflection absorption infrared spectroscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The adsorption of dimethylamine on Cu(1 1 0) and Ni(1 1 1) has been studied by reflection absorption infrared spectroscopy. For Cu(1 1 0), adsorption was molecular at 80 and 300 K and for submonolayer dimethylamine the appearance of A′ and not A″ modes indicated C s symmetry. Similar bonding was found for Ni(1 1 1) at 170 K. Annealing the adlayer to 350 K resulted in the formation of a new species on Ni(1 1 1), similar to that which has been identified as methylaminocarbyne on Pt(1 1 1). In contrast only molecular dimethylamine was identified on Cu(1 1 0), with H-bonded interactions at high coverage and a potential surface dimer.
ISSN:0039-6028
1879-2758
DOI:10.1016/j.susc.2006.03.038