Abstract
Adsorption of Mn2(CO)10 at 90 K on MgO(100) thin films grown onto Mo(100) has been investigated using thermal desorption spectroscopy and infrared reflection-absorption spectroscopy. The results of infrared spectroscopy are compared with gas-phase and solid-state studies of Mn2(CO)10. Heating a deposit of 3.5 monolayers to 800 K showed first molecular desorption and an ordering of the layers towards the crystalline phase at low temperature followed by decarbonylation as the temperature increases. At 800 K only a small amount (1-3% of a monolayer of manganese) of the initial deposit remained on the surface, anchored to defects. A CO stretching frequency was still observed at this temperature and was attributed to CO strongly bound to the remaining manganese.
Original language | English |
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Pages (from-to) | 780-785 |
Number of pages | 6 |
Journal | Surface Science |
Volume | 377-379 |
DOIs | |
State | Published - 20 Apr 1997 |
Externally published | Yes |
Keywords
- Dimanganese decacarbonyl
- Insulating films
- Magnesium oxide
- Physical adsorption
- Surface chemical reaction
- Thermal desorption