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|e rakwb
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|a eng
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|a Lackinger, Markus
|e verfasserin
|4 aut
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|a Self-assembly of trimesic acid at the liquid-solid interface-a study of solvent-induced polymorphism
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|c 2005
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 14.06.2006
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|a Date Revised 17.05.2005
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a A scanning tunneling microscope operated under ambient conditions was utilized to study the self-assembly of trimesic acid (TMA) at the liquid-solid interface. On a graphite substrate, two different open, loosely packed, two-dimensional hydrogen-bond networks were found. Both structures exhibit a periodic arrangement of approximately 1.0 nm wide cavities, which can be used for the co-adsorption of another species (guest) within the cells of this host system. These two polymorphs ("chickenwire" and "flower" structures) differ in their molecular packing density and hydrogen-bonding schemes. Using a homologous series of alkanoic acids as solvents, ranging from butyric to nonanoic, selective self-assembly of either the "flower" or "chickenwire" forms was achieved on a graphite surface. Solubility of TMA in these acid solvents was found to decrease with increasing chain length, and the longer-chain solvents favored formation of the chickenwire polymorph structure on the surface
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|a Journal Article
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|a Griessl, Stefan
|e verfasserin
|4 aut
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|a Heckl, Wolfgang M
|e verfasserin
|4 aut
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|a Hietschold, Michael
|e verfasserin
|4 aut
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|a Flynn, George W
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 21(2005), 11 vom: 24. Mai, Seite 4984-8
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:21
|g year:2005
|g number:11
|g day:24
|g month:05
|g pages:4984-8
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|d 21
|j 2005
|e 11
|b 24
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|h 4984-8
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