{"@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/1361137043704540288.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1021/acs.jpcb.5b09745"}},{"identifier":{"@type":"URI","@value":"https://pubs.acs.org/doi/pdf/10.1021/acs.jpcb.5b09745"}},{"identifier":{"@type":"PMID","@value":"26583429"}}],"dc:title":[{"@value":"Polarity and Nonpolarity of Ionic Liquids Viewed from the Rotational Dynamics of Carbon Monoxide"}],"description":[{"notation":[{"@value":"The rotational dynamics of carbon monoxide (CO) in a molten salt, ionic liquids (ILs), and alkanes were investigated by (17)O NMR T1 measurements using labeled C(17)O. The molten salt and the studied ILs have the bis(trifluoromethanesulfonyl)imide anion ([NTf2](-)) in common. In hexane near room temperature, the rotational relaxation times are close to the values predicted from the slip boundary condition in the Stokes-Einstein-Debye (SED) theory. However, in contradiction to the theoretical prediction, the rotational relaxation times decrease as the value of η/T increases, where η and T are the viscosity and absolute temperature, respectively. In other alkanes and ILs used in this study, the rotational relaxation times are much faster than those predicted by SED, and show a unique dependence on the number of alkyl carbons. For the same value of η/T, the CO rotational relaxation times in ILs composed of short-alkyl-chain-length imidazolium cations (1-ethyl-3-methylimidazolium and 1-butyl-3-methylimidazolium) are close to those for a molten salt (Cs[NTf2]). On the other hand, the rotational relaxation times in ILs composed of long-chain-length imidazolium (1-methyl-3-octylimidazolium) and phosphonium (tributylmethylphosphonium and tetraoctylphosphonium) cations are much shorter than the SED predictions. This deviation from theory increases as the alkyl chain length increases. We also found that the rotational relaxation times in dodecane and squalane are similar to those in ILs with a similar number of alkyl carbons. These results are discussed in terms of heterogeneous solvation and in comparison with the translational diffusion of CO in ILs."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381137043704540288","@type":"Researcher","foaf:name":[{"@value":"Y. Yasaka"}],"jpcoar:affiliationName":[{"@value":"Department of Molecular Chemistry\rand Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137043704540289","@type":"Researcher","foaf:name":[{"@value":"Y. Kimura"}],"jpcoar:affiliationName":[{"@value":"Department of Molecular Chemistry\rand Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, 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":"2015-12-04","prism:volume":"119","prism:number":"50","prism:startingPage":"15493","prism:endingPage":"15501"},"reviewed":"false","url":[{"@id":"https://pubs.acs.org/doi/pdf/10.1021/acs.jpcb.5b09745"}],"createdAt":"2015-11-19","modifiedAt":"2023-04-17","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360298757194420096","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Solvent Role of Ionic Liquids in Fundamental Chemical Reaction Dynamics Analyzed by Time‐Resolved Spectroscopy"}]},{"@id":"https://cir.nii.ac.jp/crid/1360588380160067072","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Nanostructure and local dynamics of 1-alkyl-3-methylimidazolium alkyl-sulfonates"}]},{"@id":"https://cir.nii.ac.jp/crid/1360850167669492608","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Solvation heterogeneity in ionic liquids as demonstrated by photo-chemical reactions"}]},{"@id":"https://cir.nii.ac.jp/crid/1390305876236103936","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"ピコ秒・ナノ秒時間分解分光計測によるイオン液体中における光化学反応素過程の評価"},{"@language":"en","@value":"Fundamental Photochemical Reaction Dynamics in Ionic Liquids Assessed by Pico- and Nanosecond Time-resolved Spectroscopic Measurements"},{"@language":"ja-Kana","@value":"ピコビョウ ・ ナノビョウ ジカン ブンカイ ブンコウ ケイソク ニ ヨル イオン エキタイ チュウ ニ オケル コウカガク ハンノウソ カテイ ノ ヒョウカ"}]},{"@id":"https://cir.nii.ac.jp/crid/2051151842062066944","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Study on the translational diffusion of transient species in 1-alkyl-3-methylimidazolium-based ionic liquids by transient grating spectroscopy"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1021/acs.jpcb.5b09745"},{"@type":"OPENAIRE","@value":"doi_dedup___::4baa1cb575963ab411fa7dab7ad0e809"},{"@type":"CROSSREF","@value":"10.1002/tcr.202200242_references_DOI_aWRQRTlkrCOMs9PHvoOckDsxRBw"},{"@type":"CROSSREF","@value":"10.1246/bcsj.20220099_references_DOI_aWRQRTlkrCOMs9PHvoOckDsxRBw"},{"@type":"CROSSREF","@value":"10.1093/bulcsj/uoaf016_references_DOI_aWRQRTlkrCOMs9PHvoOckDsxRBw"},{"@type":"CROSSREF","@value":"10.1515/pac-2019-1116_references_DOI_aWRQRTlkrCOMs9PHvoOckDsxRBw"},{"@type":"CROSSREF","@value":"10.2116/bunsekikagaku.74.499_references_DOI_aWRQRTlkrCOMs9PHvoOckDsxRBw"}]}