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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1021/la901114e
|2 doi
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|a pubmed24n0636.xml
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|a (DE-627)NLM190908491
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|a (NLM)19705891
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|a DE-627
|b ger
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|e rakwb
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| 041 |
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|a eng
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| 100 |
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|a Shimamoto, Kei
|e verfasserin
|4 aut
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|a Miscibility and distribution of counterions of imidazolium ionic liquid mixtures at the air/water surface
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|c 2009
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 03.11.2009
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|a Date Revised 26.08.2009
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a The miscibility and distribution of Br(-) and BF(4)(-) ions of imidazolium ionic liquid mixtures, 1-hexyl-3-methylimidazolium bromide (HMIMBr) + 1-hexyl-3-methylimidazolium tetrafluoroborate (HMIMBF(4)), at the air/water surface were investigated by surface tensiometry and the total-reflection XAFS (TRXAFS) method. Tensiometry showed that the surface density of BF(4)(-) was much larger than that of Br(-), the adsorbed films of the HMIMBr-HMIMBF(4) mixture were greatly enriched in BF(4)(-) at all surface tensions, and the excess Gibbs energy of adsorption was positive. However, TRXAFS revealed that the Br ions were all in the free-Br state solvated by six water molecules in the mixed adsorbed film. Entropy-originated nonideal mixing, where a kind of segregation of the counterion distribution takes place in the interfacial region, was suggested in the mixture
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|a Journal Article
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|a Onohara, Asuka
|e verfasserin
|4 aut
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1 |
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|a Takumi, Hiroki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Watanabe, Iwao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tanida, Hajime
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Matsubara, Hiroki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Takiue, Takanori
|e verfasserin
|4 aut
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| 700 |
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|a Aratono, Makoto
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 25(2009), 17 vom: 01. Sept., Seite 9954-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:25
|g year:2009
|g number:17
|g day:01
|g month:09
|g pages:9954-9
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| 856 |
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|u http://dx.doi.org/10.1021/la901114e
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