Výsledky vyhledávání - "J. W. Emsley"

Conformational properties of alkyloxy end chains in NOCB liquid crystals

Autor: J. W. Emsley

Publikováno v: Liquid Crystals. 46:857-871

A proton-encoded local field 2D NMR spectrum of 4′-pentyloxy-4-biphenylcarbonylnitrile (5OCB) was published in 2003 (Liquid Crystals, 2003; 30: 611–615) but not completely assigned, nor analysed to...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac1dbb57b47038c7a39e170ac775f260
https://doi.org/10.1080/02678292.2018.1533596

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Phase transitions in a high magnetic field of an odd, symmetric liquid crystal dimer having two nematic phases, N_{U} and N_{TB}, studied by NMR spectroscopy

Autor: C T, Imrie, D A, Paterson, J M D, Storey, C, Chamignon, M, Lelli, J W, Emsley, G R, Luckhurst

Publikováno v: Physical review. E. 102(4-1)

Both ^{1}H and ^{13}C NMR spectra have been obtained in a static magnetic field of 23.5 T on a bent-shaped dimer molecule, 1^{''},7^{''}-bis(4-cyanobiphenyl-4'-yl) nonane (CB9CB), which shows the sequence of liquid crystal phases twist-bend nematic,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::0965317545f51ebdff729f424a1eee98
https://pubmed.ncbi.nlm.nih.gov/33212702

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Publisher's Note: C13 NMR study of the director distribution adopted by the modulated nematic phases formed by liquid-crystal dimers with odd numbers of atoms in their spacers [Phys. Rev. E 96 , 062702 (2017)]

Autor: Herbert Zimmermann, Geoffrey R. Luckhurst, J. W. Emsley, Moreno Lelli

Publikováno v: Physical Review E. 97

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a5d580c3ad10fc526da7780be29f157e
https://doi.org/10.1103/physreve.97.029903

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C13 NMR study of the director distribution adopted by the modulated nematic phases formed by liquid-crystal dimers with odd numbers of atoms in their spacers

Autor: Geoffrey R. Luckhurst, J. W. Emsley, Moreno Lelli, Herbert Zimmermann

Publikováno v: Physical Review E. 96

The orientational order of the molecules in the bent mesogen CB6OCB has been studied throughout the range of temperature stability of both the N_{U} and N_{TB} liquid-crystal phases by ^{13}C NMR spectroscopy. These spectra provide local order parame

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b6de8c8c02be9327ffa1b2f4c3a3e13
https://doi.org/10.1103/physreve.96.062702

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^{13}C NMR study of the director distribution adopted by the modulated nematic phases formed by liquid-crystal dimers with odd numbers of atoms in their spacers

Autor: J W, Emsley, M, Lelli, G R, Luckhurst, H, Zimmermann

Publikováno v: Physical review. E. 96(6-1)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::4eec180fcd05b1752e73353010c5667f
https://pubmed.ncbi.nlm.nih.gov/29548113

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Autor: Henry Joy, J. W. Emsley, Georg H. Mehl, Moreno Lelli, Maria-Gabriela Tamba

Publikováno v: Physical chemistry chemical physics : PCCP. 18(14)

The order parameter, Szz, where z is the para axis of the difluoroterphenyl groups in DTC5C9, has been obtained from chemical shift anisotropies measured by (13)C - {(1)H} NMR experiments at temperatures throughout the nematic, NU, and twist-bend nem

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https://pubmed.ncbi.nlm.nih.gov/26979277

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Biaxial nematic liquid crystals: theory, simulation and experiment, edited by Geoffrey R. Luckhurst and Timothy J. Sluckin, Chichester, John Wiley & Sons, 2015, 383 p., £120 ($160, 135 Euro) hardback, ISBN 9780470871959

Autor: J. W. Emsley

Publikováno v: Liquid Crystals Today. 26:124-125

Those drawn to read this review are surely interested in, and probably involved with liquid crystals, but for different motives. All of you could gain from reading the articles in this edited colle...

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https://doi.org/10.1080/1358314x.2017.1401268

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Do the molecules which form discotic liquid crystals have disc‐like structures? The conformation of a simple model compound, 1,2‐dihydroxydiacetylbenzene, determined from the NMR spectra of samples dissolved in liquid crystalline solvents

Autor: E. K. Foord, Giuseppe Pileio, Marcello Longeri, J. W. Emsley, G. De Luca, M. Egan

Publikováno v: Liquid Crystals. 35:205-211

Many discotic mesogens are molecules with a central aromatic ring with adjacent alkylcarboxylate substituents. The simplest such molecule, 1,2‐dihydroxydiacetylbenzene, which is not mesogenic, is studied by NMR spectroscopy as a solute in a nematic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::236839a9f14d154bda1c12b730b00691
https://doi.org/10.1080/02678290701824207

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NMR methods of studying orientational order in the liquid crystalline and isotropic phases of mesogenic samples

Autor: J. W. Emsley

Publikováno v: Liquid Crystals. 32:1515-1524

The understanding of how to describe the orientational order of the molecules in liquid crystalline phases, and in the isotropic phase formed by mesogens, has undergone considerable development in the past 25 years; this progress is reviewed. In para

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::43e6f194ab654711f812c5c86fdad13a
https://doi.org/10.1080/02678290500284512

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