Journal
LANGMUIR
Volume 26, Issue 6, Pages 3972-3974Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la903335v
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Funding
- UK Engineering and Physical Sciences Research Council (EPSRC) [EP/D048761/1]
- EPSRC [EP/D048761/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/D048761/1] Funding Source: researchfish
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The effect on 2D molecular crystallization caused by the addition of propylthioether side groups to the 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) molecule is investigated using scanning tunneling microscopy (STM). The molecule was deposited from 1-phenyloctane onto highly oriented pyrolytic graphite (HOPG) and imaged at the liquid-solid interface. We observe a different structure to previously reported arrangements of PTCDA due to the presence of the propylthioether side groups which inhibits the formation of the herringbone phase. A model, supported by calculations based oil density functional theory, is proposed ill Which molecules form rows stabilized by hydrogen bonding.
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