The monolayer structure of 1,2-bis(4-pyridyl)ethylene physisorbed on a graphite surface
The monolayer structure of 1,2-bis(4-pyridyl)ethylene physisorbed on a graphite surface
The crystalline monolayer of 1,2-bis(4-pyridyl)ethylene physisorbed on a graphite surface at 0.44 monolayers coverage has been observed and characterized by synchrotron X-ray diffraction and differential scanning calorimetry. The experimentally determined monolayer structure has p2 symmetry with lattice parameters a?=?17.77?Å, b?=?13.69?Å and ??=?39.7°. The unit cell contains two molecules, which are oriented in a plane parallel to the surface. It is proposed that the molecules are arranged such that they are able to form a weak C–H?···?N hydrogen bond between pyridine groups. The monolayer melts at 414?K, which is unusually close to the bulk melting point for a sub-monolayer coverage system. This molecule is chiral when adsorbed on the surface, but both isomers appear in the unit cell leading to no overall chirality in the monolayer.
monolayer, synchrotron, physisorption, 1, 2-bis(4-pyridyl)ethylene, graphite
1-7
Brewer, Adam Y.
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Friscic, Tomislav
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Day, G.M.
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Overvoorde, Lois M.
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Parker, Julia E.
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Richardson, Chris N.
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Clarke, Stuart M.
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10 July 2012
Brewer, Adam Y.
e4c2f3af-ae7d-4a77-b93e-b4e1d21bb4d0
Friscic, Tomislav
057c0eec-8c41-486a-893a-9c05d2a33432
Day, G.M.
e3be79ba-ad12-4461-b735-74d5c4355636
Overvoorde, Lois M.
32488303-046f-4a33-be0b-ca1559a2e29c
Parker, Julia E.
cc48e924-5624-4126-9e1d-a2ad62d10c78
Richardson, Chris N.
f44308af-20fe-4c2f-8328-2f1e13c19d56
Clarke, Stuart M.
b45bd5a9-0d48-4c7d-a071-28420db377a3
Brewer, Adam Y., Friscic, Tomislav, Day, G.M., Overvoorde, Lois M., Parker, Julia E., Richardson, Chris N. and Clarke, Stuart M.
(2012)
The monolayer structure of 1,2-bis(4-pyridyl)ethylene physisorbed on a graphite surface.
Molecular Physics, .
(doi:10.1080/00268976.2012.702229).
Abstract
The crystalline monolayer of 1,2-bis(4-pyridyl)ethylene physisorbed on a graphite surface at 0.44 monolayers coverage has been observed and characterized by synchrotron X-ray diffraction and differential scanning calorimetry. The experimentally determined monolayer structure has p2 symmetry with lattice parameters a?=?17.77?Å, b?=?13.69?Å and ??=?39.7°. The unit cell contains two molecules, which are oriented in a plane parallel to the surface. It is proposed that the molecules are arranged such that they are able to form a weak C–H?···?N hydrogen bond between pyridine groups. The monolayer melts at 414?K, which is unusually close to the bulk melting point for a sub-monolayer coverage system. This molecule is chiral when adsorbed on the surface, but both isomers appear in the unit cell leading to no overall chirality in the monolayer.
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Published date: 10 July 2012
Keywords:
monolayer, synchrotron, physisorption, 1, 2-bis(4-pyridyl)ethylene, graphite
Organisations:
Organic Chemistry: Synthesis, Catalysis and Flow, Chemistry
Identifiers
Local EPrints ID: 343221
URI: http://eprints.soton.ac.uk/id/eprint/343221
ISSN: 0026-8976
PURE UUID: d42bd9b7-e1e9-4bfe-96bb-942b44423ee2
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Date deposited: 01 Oct 2012 13:35
Last modified: 15 Mar 2024 03:44
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Contributors
Author:
Adam Y. Brewer
Author:
Tomislav Friscic
Author:
Lois M. Overvoorde
Author:
Julia E. Parker
Author:
Chris N. Richardson
Author:
Stuart M. Clarke
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