UNSPECIFIED (2002) Methyl on Cu(111) - structural determination including influence of co-adsorbed iodine. Surface Science, 512 (3). pp. 173-184.

Research output not available from this repository, contact author.

Request Changes to record.

Abstract

The adsorption geometry of the methyl species on Cu(111) with and without coadsorbed iodine has been determined using scanned energy mode photoelectron diffraction. Under all circumstances the three-fold-coordinated hollow sites are occupied. At saturation coverage of pure methyl species only the 'fcc' site, directly above a third layer Cu atom is occupied, whereas at half saturation coverage similar to70% of the methyl species occupy these fcc hollows and similar to30% occupy the 'hcp' sites above second layer Cu atoms. Best agreement between theory and experiment corresponded to a methyl group adsorbed with C-3v symmetry, but the possibility that the species was tilted on the surface could not be excluded. The height of the C above the surface in a pure methyl layer was 1.66 +/- 0.02 Angstrom, but was reduced to 1.62 +/- 0.02 Angstrom in the presence of co-adsorbed iodine, suggesting that iodine may increase the strength of adsorption. Iodine was also found to occupy the fcc hollow sites with a Cu-I bondlength of 2.61 +/- 0.02 k (C) 2002 Elsevier Science B.V. All rights reserved.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry Q Science > QC Physics
Journal or Publication Title:	Surface Science
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0039-6028
Official Date:	1 July 2002
Dates:	Date Event 1 July 2002 UNSPECIFIED
Volume:	512
Number:	3
Number of Pages:	12
Page Range:	pp. 173-184
Publication Status:	Published

Data sourced from Thomson Reuters' Web of Knowledge

Request changes or add full text files to a record

Repository staff actions (login required)

View Item