Molecular clustering behaviour in the cybotactic nematic phase of a spin-labelled liquid crystal

Uchida, Yoshiaki; Akita, Takuya; Hanada, Kazuki; Kiyohara, Daichi; Nishiyama, Norikazu

doi:https://doi.org/10.1039/d2tc00626j

Molecular clustering behaviour in the cybotactic nematic phase of a spin-labelled liquid crystal

Uchida, Yoshiaki; Akita, Takuya; Hanada, Kazuki et al.

Journal of Materials Chemistry C, 2022, 10(17), 6621-6627

アクセス数:599件（2025-08-28 18:27 集計）

固定URL: https://hdl.handle.net/11094/91520

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タイトル	Molecular clustering behaviour in the cybotactic nematic phase of a spin-labelled liquid crystal
著者	NRID 1000060559558 1000060559558 ORCID 0000-0001-5043-9239 0000-0001-5043-9239 researchmap permalink Yoshiaki_Uchida Yoshiaki_Uchida Scopus Author ID 8348749200 8348749200 著者名 Uchida, Yoshiaki
	著者名 Akita, Takuya
	著者名 Hanada, Kazuki
	著者名 Kiyohara, Daichi
	NRID 1000010283730 1000010283730 researchmap permalink read0046501 read0046501 Scopus Author ID 7201750198 7201750198 著者名 Nishiyama, Norikazu
内容	Uchida Y., Akita T., Hanada K., et al. Molecular clustering behaviour in the cybotactic nematic phase of a spin-labelled liquid crystal. Journal of Materials Chemistry C 10 , 6621 (2022); https://doi.org/10.1039/d2tc00626j.
抄録	A newly synthesised liquid crystalline nitroxide radical (LC-NR) with a terminal trifluoromethyl group as spin-labelled LC compounds exhibits an anomalous phase transition behaviour. It is likely attributed to non-covalent interactions between the trifluoromethyl groups of the adjacent molecules. X-ray diffractometry of the LC-NR suggests the existence of a cybotactic nematic (Ncyb) phase with a transient and local layer order between the normal nematic (N) and smectic A (SmA) phases. The EPR spectroscopy of the spin-labelled LC implies no discontinuity in magnetic susceptibility around the N-to-Ncyb phase transition. Intermolecular contacts between nitroxide radicals seem to change continuously. These results imply that the interactions between trifluoromethyl groups induce the cybotactic clusters, where molecules move in and out.
出版者	Royal Society of Chemistry
収録物名	Journal of Materials Chemistry C
巻(号)	10(17)
ページ	6621-6627
刊行年月	2022-04-11
言語	英語
ハンドルURL	https://hdl.handle.net/11094/91520
eISSN	20507526
NCID	AA12605026
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1039/d2tc00626j
アクセス権	open access
権利情報	Reproduced from J. Mater. Chem. C, 2022, 10, 6621-6627 with permission from the Royal Society of Chemistry.
出版タイプ	Accepted Manuscript
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Journal of Materials Chemistry C. 2022, 10(17), p. 6621-6627
DC.title	Molecular clustering behaviour in the cybotactic nematic phase of a spin-labelled liquid crystal
DC.creator	Uchida, Yoshiaki
	Akita, Takuya
	Hanada, Kazuki
	Kiyohara, Daichi
	Nishiyama, Norikazu
DC.publisher	Royal Society of Chemistry
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2022-04-11
DC.identifier	https://doi.org/10.1039/d2tc00626j
DC.description	Uchida Y., Akita T., Hanada K., et al. Molecular clustering behaviour in the cybotactic nematic phase of a spin-labelled liquid crystal. Journal of Materials Chemistry C 10 , 6621 (2022); https://doi.org/10.1039/d2tc00626j.
DCTERMS.abstract	A newly synthesised liquid crystalline nitroxide radical (LC-NR) with a terminal trifluoromethyl group as spin-labelled LC compounds exhibits an anomalous phase transition behaviour. It is likely attributed to non-covalent interactions between the trifluoromethyl groups of the adjacent molecules. X-ray diffractometry of the LC-NR suggests the existence of a cybotactic nematic (Ncyb) phase with a transient and local layer order between the normal nematic (N) and smectic A (SmA) phases. The EPR spectroscopy of the spin-labelled LC implies no discontinuity in magnetic susceptibility around the N-to-Ncyb phase transition. Intermolecular contacts between nitroxide radicals seem to change continuously. These results imply that the interactions between trifluoromethyl groups induce the cybotactic clusters, where molecules move in and out.
DC.rights	Reproduced from J. Mater. Chem. C, 2022, 10, 6621-6627 with permission from the Royal Society of Chemistry.
DC.format	91520
citation_title	Molecular clustering behaviour in the cybotactic nematic phase of a spin-labelled liquid crystal
citation_author	Uchida, Yoshiaki
	Akita, Takuya
	Hanada, Kazuki
	Kiyohara, Daichi
	Nishiyama, Norikazu
citation_publisher	Royal Society of Chemistry
citation_language	英語
citation_date	2022-04-11
citation_journal_title	Journal of Materials Chemistry C
citation_volume	10
citation_issue	17
citation_firstpage	6621
citation_lastpage	6627
citation_doi	https://doi.org/10.1039/d2tc00626j
citation_public_url	https://hdl.handle.net/11094/91520

Molecular clustering behaviour in the cybotactic nematic phase of a spin-labelled liquid crystal

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