Observing short-range orientational order in small-molecule liquids
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2022 |
| Outros Autores: | , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| Texto Completo: | http://hdl.handle.net/10362/150564 |
Resumo: | AG and TA acknowledge the funding from Slovenian Research Agency, Basic core funding grant P1-0125. SNF, MGH acknowledge the FCT—Portuguese Foundation for Science and Technology projects PIDDAC (POCI-01-0145-FEDER-007688, Reference UIDB/50025/2020-2023). Publisher Copyright: © 2022, The Author(s). |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Observing short-range orientational order in small-molecule liquidsGeneralAG and TA acknowledge the funding from Slovenian Research Agency, Basic core funding grant P1-0125. SNF, MGH acknowledge the FCT—Portuguese Foundation for Science and Technology projects PIDDAC (POCI-01-0145-FEDER-007688, Reference UIDB/50025/2020-2023). Publisher Copyright: © 2022, The Author(s).Local molecular ordering in liquids has attracted a lot of interest from researchers investigating crystallization, but is still poorly understood on the molecular scale. Classical nucleation theory (CNT), a macroscopic thermodynamic description of condensation, has shortcomings when dealing with clusters consisting of tens of molecules. Cluster formation and local order fluctuations in liquid media are difficult to study due to the limited spatial resolution of electron- and photon-imaging methods. We used NMR relaxometry to demonstrate the existence of dynamic clusters with short-range orientational order in nominally isotropic liquids consisting of elongated molecules. We observed clusters in liquids where the local ordering is driven by polar, steric, and hydrogen-bond interactions between the molecules. In the case of a liquid crystal, measuring the local orientational order fluctuations allowed us to observe the size of these clusters diverging when approaching the phase transition from the isotropic to the nematic phase. These fluctuations are described in terms of rotational elasticity as a consequence of the correlated reorientations of the neighbouring molecules. Our quantitative observations of the dynamic clusters in liquids, numbering about ten or fewer molecules, indicate that this is a general phenomenon in various types of liquids.DCM - Departamento de Ciência dos MateriaisCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)RUNGradišek, AntonApih, TomažBeira, Maria J.Cruz, CarlosFernandes, Susete N.Godinho, Helena M.Sebastião, Pedro J.2023-03-14T22:43:42Z2022-122022-12-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article6application/pdfhttp://hdl.handle.net/10362/150564engGradišek, A., Apih, T., Beira, M. J., Cruz, C., Fernandes, S. N., Godinho, H. M., & Sebastião, P. J. (2022). Observing short-range orientational order in small-molecule liquids. Scientific Reports, 12(1), [22500]. https://doi.org/10.1038/s41598-022-27187-72045-2322PURE: 55644037https://doi.org/10.1038/s41598-022-27187-7info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:32:35Zoai:run.unl.pt:10362/150564Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:54:11.171804Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
| dc.title.none.fl_str_mv |
Observing short-range orientational order in small-molecule liquids |
| title |
Observing short-range orientational order in small-molecule liquids |
| spellingShingle |
Observing short-range orientational order in small-molecule liquids Gradišek, Anton General |
| title_short |
Observing short-range orientational order in small-molecule liquids |
| title_full |
Observing short-range orientational order in small-molecule liquids |
| title_fullStr |
Observing short-range orientational order in small-molecule liquids |
| title_full_unstemmed |
Observing short-range orientational order in small-molecule liquids |
| title_sort |
Observing short-range orientational order in small-molecule liquids |
| author |
Gradišek, Anton |
| author_facet |
Gradišek, Anton Apih, Tomaž Beira, Maria J. Cruz, Carlos Fernandes, Susete N. Godinho, Helena M. Sebastião, Pedro J. |
| author_role |
author |
| author2 |
Apih, Tomaž Beira, Maria J. Cruz, Carlos Fernandes, Susete N. Godinho, Helena M. Sebastião, Pedro J. |
| author2_role |
author author author author author author |
| dc.contributor.none.fl_str_mv |
DCM - Departamento de Ciência dos Materiais CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N) RUN |
| dc.contributor.author.fl_str_mv |
Gradišek, Anton Apih, Tomaž Beira, Maria J. Cruz, Carlos Fernandes, Susete N. Godinho, Helena M. Sebastião, Pedro J. |
| dc.subject.por.fl_str_mv |
General |
| topic |
General |
| description |
AG and TA acknowledge the funding from Slovenian Research Agency, Basic core funding grant P1-0125. SNF, MGH acknowledge the FCT—Portuguese Foundation for Science and Technology projects PIDDAC (POCI-01-0145-FEDER-007688, Reference UIDB/50025/2020-2023). Publisher Copyright: © 2022, The Author(s). |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022-12 2022-12-01T00:00:00Z 2023-03-14T22:43:42Z |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/150564 |
| url |
http://hdl.handle.net/10362/150564 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
Gradišek, A., Apih, T., Beira, M. J., Cruz, C., Fernandes, S. N., Godinho, H. M., & Sebastião, P. J. (2022). Observing short-range orientational order in small-molecule liquids. Scientific Reports, 12(1), [22500]. https://doi.org/10.1038/s41598-022-27187-7 2045-2322 PURE: 55644037 https://doi.org/10.1038/s41598-022-27187-7 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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6 application/pdf |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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