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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.6b02639
|2 doi
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|a eng
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|a Ma, Ke
|e verfasserin
|4 aut
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|a Charge-Induced Long-Range Order in a Room-Temperature Ionic Liquid
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|c 2016
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 14.06.2018
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|a Date Revised 14.06.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a We report direct evidence for charge-induced long-range (ca. 100 μm) order in the room-temperature ionic liquid (IL) 1-butyl-3-methylimidazolium tetrafluoroborate (BMIM(+)BF4(-)), supported on a silica surface. We have measured the rotational diffusion dynamics of anionic, cationic, and neutral chromophores as a function of distance from a silica surface. The results reflect the excess charge density gradient induced in the IL by the (negative) charge present on the silica surface. Identical measurements in ethylene glycol reveal spatially invariant reorientation dynamics for all chromophores. Capping the silica support with Me2SiCl2 results in spatially invariant reorientation dynamics in the IL. We understand these data in the context of the IL exhibiting a spatially damped piezoelectric response mediated by IL fluidity and disorder
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|a Journal Article
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|a Research Support, N.I.H., Extramural
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Ionic Liquids
|2 NLM
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|a Silicon Dioxide
|2 NLM
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|a 7631-86-9
|2 NLM
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|a Jarosova, Romana
|e verfasserin
|4 aut
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|a Swain, Greg M
|e verfasserin
|4 aut
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|a Blanchard, Gary J
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 32(2016), 37 vom: 20. Sept., Seite 9507-12
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|x 1520-5827
|7 nnns
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|g volume:32
|g year:2016
|g number:37
|g day:20
|g month:09
|g pages:9507-12
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|u http://dx.doi.org/10.1021/acs.langmuir.6b02639
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