In situ, temperature dependent, XAFS proved that Cr(II) grafted on SiO(2) is extracted from the surface upon CO adsorption at 100 K: DeltaR(Cr-O) = +0.08 A. CO adsorption evolves into two coverage dependent steps: (i) displacement of weak siloxane ligands (non-classical carbonyls); (ii) relaxation of R(Cr-O) surface bond, R(Cr-CO) optimization and transformation into classical carbonyls.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/b920681g | DOI Listing |
Publication Analysis
Top Keywords
direct evidence
4
evidence adsorption
4
adsorption induced
4
induced crii
4
crii mobility
4
mobility sio2
4
sio2 surface
4
surface complexation
4
complexation situ
4
situ temperature
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!