Solvent Effects on the Monolayer Structure of Long n-Alkane Molecules Adsorbed on Graphite

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Solvent Effects on the Monolayer Structure of Long n-Alkane Molecules Adsorbed on Graphite

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Title: Solvent Effects on the Monolayer Structure of Long n-Alkane Molecules Adsorbed on Graphite
Author: Herwig, K. W.; Matthies, Blake E. (Blake Edward), 1968-; Taub, Haskell
Keywords: molecular orientation
Date: 1995-10-23
Publisher: American Physical Society
Citation: Phys. Rev. Lett. 75, 3154-3157 (1995)
Abstract: Neutron diffraction patterns of dotriacontane ( n-C32D66) monolayers adsorbed on an exfoliated graphite substrate from a heptane ( n-C7D16) solution reveal striking differences in the molecular orientation, lattice constant, and coherence length from those of the same monolayer adsorbed from the gas phase. Neither n-C32D66 monolayer phase appears to be fully consistent with Groszek's model of n-alkane registry on the graphite (0001) surface. A reversible transformation between the two monolayer phases can be induced by adding as little as a monolayer of the heptane solvent.
URI: http://hdl.handle.net/10355/8771
ISSN: 0031-9007

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