Crystalline Structures of Alkylamide Monolayers Adsorbed on the Surface of Graphite

Bhinde, Tej and Clarke, Stuart M. and Phillips, Tamsin K. and Arnold, Thomas and Parker, Julia E. (2010) Crystalline Structures of Alkylamide Monolayers Adsorbed on the Surface of Graphite. Langmuir, 26 (11). pp. 8201-8206. DOI 10.1021/la904587u

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Official URL: http://dx.doi.org/10.1021/la904587u

Abstract

Synchrotron X-ray and neutron diffraction have been used to determine the two-dimensional crystalline structures of alkylamides adsorbed on graphite at submonolayer coverage. The calculated structures show that the plane of the carbon backbone of the amide molecules is parallel to the graphite substrate. The molecules form hydrogen-bonded dimers, and adjacent dimers form additional hydrogen bonds yielding extended chains. By presenting data from a number of members of the homologous series, we have identified that these chains pack in different arrangements depending on the number of carbons in the amide molecule. The amide monolayers are found to be very stable relative to other closely related alkyl species, a feature which is attributed to the extensive hydrogen bonding present in these systems. The characteristics of the hydrogen bonds have been determined and are found to be in close agreement with those present in the bulk materials.

Item Type: Article
Uncontrolled Keywords: BPI; 09AREP;
Subjects: 99 - Other
Divisions: 99 - Other
Journal or Publication Title: Langmuir
Volume: 26
Page Range: pp. 8201-8206
Identification Number: 10.1021/la904587u
Depositing User: Sarah Humbert
Date Deposited: 08 Jul 2010 13:38
Last Modified: 23 Jul 2013 09:57
URI: http://eprints.esc.cam.ac.uk/id/eprint/1445

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