UNSPECIFIED (2001) A high resolution electron energy loss spectroscopy study of the adsorption of benzylic amide macrocycle on Au(111). Surface Science, 474 (1-3). pp. 71-80. ISSN 0039-6028

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Abstract

The adsorption from the gas phase of a macrocyclic molecule composed of benzylic amide (-CONH-CH2-C6H4-) groups on Au(1 1 1) at 300 K has been studied using high resolution electron energy loss spectroscopy. The film order and vibrational properties were explored as a function of coverage, method of adlayer deposition and annealing. Beyond a critical coverage, a template effect strongly influences the macrocycle's orientation with respect to the substrate. In the case of ordered films (domain size > 80 Angstrom), the intensity of the out-of-plane C-H deformation mode relative to the in-plane C-H stretch indicates that an adsorption geometry with the plane of the phenyl rings largely parallel to the Au(1 1 1) surface is favoured in the submonolayer to monolayer coverage regime, Upon consideration of solid state Xray diffraction data, this flat-lying molecular orientation, which is accompanied by chemisorption via the carbonyl function, must involve considerable distortion of the adsorbed macrocycle from its crystal structure. (C) 2001 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
Date:	1 March 2001
Volume:	474
Number:	1-3
Number of Pages:	10
Page Range:	pp. 71-80
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/12353

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