{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360004233234601344.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1021/jp206266e"}},{"identifier":{"@type":"URI","@value":"https://pubs.acs.org/doi/pdf/10.1021/jp206266e"}},{"identifier":{"@type":"PMID","@value":"21834594"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Microscopic Aspects in Dicationic Ionic Liquids through the Low-Frequency Spectra by Femtosecond Raman-Induced Kerr Effect Spectroscopy"}],"description":[{"notation":[{"@value":"The interionic vibrations in imidazolium-based dicationic ionic liquids (ILs) containing the bis(trifluoromethylsulfonyl)amide ([NTf(2)](-)) counteranion were investigated using femtosecond optical-heterodyne-detected Raman-induced Kerr effect spectroscopy. The microscopic nature of the dicationic ILs ([C(n)(MIm)(2)][NTf(2)](2), where n = 6, 10, and 12; MIm = N-methylimidazolium) was compared with that of the corresponding monocationic ILs ([C(n)MIm][NTf(2)], where n = 3, 5, and 6) used as reference samples. Low-frequency Kerr spectra within the frequency range 0-200 cm(-1) of the ILs revealed that (i) the spectral profile of the dicationic ILs as well as that of the corresponding monocationic ILs is bimodal; (ii) the difference in the spectral shapes of the dicationic and monocationic ILs is greater for [C(6)(MIm)(2)][NTf(2)](2) and [C(3)MIm][NTf(2)] than for the ILs with longer alkylene linker/alkyl groups, namely [C(10)(MIm)(2)][NTf(2)](2) and [C(5)MIm][NTf(2)], and [C(12)(MIm)(2)][NTf(2)](2) and [C(6)MIm][NTf(2)]; (iii) the small difference between the dicationic and monocationic ILs is confirmed by the relative intensity of the low-frequency component (ca. 17 cm(-1)) to the high-frequency component (ca. 70 cm(-1)); and (iv) the spectral profiles of the three dicationic ILs are not very different, but the line-shape of the low-frequency Kerr spectrum of 1-methyl-3-propylimidazolium bis(trifluoromethylsulfonyl)amide ([C(3)MIm][NTf(2)]) is significantly different from those of the other two monocationic ILs whose cations have a longer alkyl group. The distinguished line-shape of the low-frequency Kerr spectrum of [C(3)MIm][NTf(2)] from the other ILs can be accounted for by the homogeneous nature in the microstructure of the IL, but the other ILs indicate microsegregation structures due to the longer nonpolar alkylene linker or alkyl group in the cations."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420001326227038464","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"00292780"},{"@type":"NRID","@value":"1000000292780"},{"@type":"NRID","@value":"9000255702735"},{"@type":"NRID","@value":"9000010141334"},{"@type":"NRID","@value":"9000241857019"},{"@type":"NRID","@value":"9000018231946"},{"@type":"NRID","@value":"9000391396555"},{"@type":"NRID","@value":"9000016591346"},{"@type":"NRID","@value":"9000411022883"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0076896"}],"foaf:name":[{"@value":"Hideaki Shirota"}],"jpcoar:affiliationName":[{"@value":"Department of Nanomaterial Science, Graduate School of Advanced Integration Science & Department of Chemistry, Faculty of Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1420564276170701312","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"10421950"},{"@type":"NRID","@value":"1000010421950"},{"@type":"NRID","@value":"9000256484002"}],"foaf:name":[{"@value":"Tateki Ishida"}],"jpcoar:affiliationName":[{"@value":"Department of Theoretical and Computational Molecular Science, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"15206106"},{"@type":"EISSN","@value":"15205207"}],"prism:publicationName":[{"@value":"The Journal of Physical Chemistry B"}],"dc:publisher":[{"@value":"American Chemical Society (ACS)"}],"prism:publicationDate":"2011-08-30","prism:volume":"115","prism:number":"37","prism:startingPage":"10860","prism:endingPage":"10870"},"reviewed":"false","url":[{"@id":"https://pubs.acs.org/doi/pdf/10.1021/jp206266e"}],"createdAt":"2011-08-12","modifiedAt":"2023-04-17","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Sulfonamides","dc:title":"Sulfonamides"},{"@id":"https://cir.nii.ac.jp/all?q=Cations","dc:title":"Cations"},{"@id":"https://cir.nii.ac.jp/all?q=Ionic%20Liquids","dc:title":"Ionic Liquids"},{"@id":"https://cir.nii.ac.jp/all?q=Quantum%20Theory","dc:title":"Quantum Theory"},{"@id":"https://cir.nii.ac.jp/all?q=Spectrum%20Analysis,%20Raman","dc:title":"Spectrum Analysis, Raman"}],"project":[{"@id":"https://cir.nii.ac.jp/crid/1040282257067950976","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"21685001"},{"@type":"JGN","@value":"JP21685001"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21685001/"}],"notation":[{"@language":"ja","@value":"イオン液体の分極と双極子の分子間相互作用:イオン液体を包含する溶液論を目指して"},{"@language":"en","@value":"Intermolecular interactions for polarizability and dipole moment in ionic liquid: To construct solution theory including ionic liquid"}]},{"@id":"https://cir.nii.ac.jp/crid/1040282257138345600","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"23550029"},{"@type":"JGN","@value":"JP23550029"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23550029/"}],"notation":[{"@language":"ja","@value":"分子内及び分子間エネルギー移動を起源とする光機能発現の理論的解明"},{"@language":"en","@value":"Theoretical Study of Intra- and Intermolecular Energy Transfer and Optical Functional Processes"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360002216672382592","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Intermolecular/Interionic Vibrations of 1-Methyl-3-<i>n</i>-octylimidazolium Tetrafluoroborate Ionic Liquid and H<sub>2</sub>O Mixtures"}]},{"@id":"https://cir.nii.ac.jp/crid/1360002217108079360","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Effects of aromaticity in cations and their functional groups on the temperature dependence of low-frequency spectrum"}]},{"@id":"https://cir.nii.ac.jp/crid/1360002219104069504","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The Surface Activity of <i>N</i>,<i>N</i>′-Polymethylenebis(trialkylammonium) Dibromides in Aqueous 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