On the blue phase structure of hydrogen-bonded liquid crystals via 19F NMR

R. Y. Dong; C. A. Michal; MARCO SACCONE; M. Spengler; C. Wolper; M. Giese

doi:10.1016/j.cplett.2018.08.056

On the blue phase structure of hydrogen-bonded liquid crystals via 19F NMR

R. Y. Dong
, C. A. Michal
, MARCO SACCONE
, M. Spengler
, C. Wolper
, M. Giese

Department of Science and Technological Innovation

Research output: Contribution to journal › Article › peer-review

Abstract

19F NMR spectra are simulated for blue phase I of FPHG(St1.5∗Ap1.5) based on a model of a double-twisted substructure inside cylinders that form a body-centred cubic lattice. A kinetic matrix is included to describe jump processes over quarter pitch lengths. Though the lines in the NMR spectra are broad and featureless, changes in the widths and positions with temperature are well described by the blue phase model structure. The spectra in the chiral nematic N∗phase are also simulated. Dynamics in the BP I are found to be slower than in the N∗phase.

Original language	English
Pages (from-to)	39-44
Number of pages	6
Journal	Chemical Physics Letters
Volume	710
DOIs	https://doi.org/10.1016/j.cplett.2018.08.056
Publication status	Published - 2018

Keywords

Blue phase I
Chiral nematic
Diffusion rate
Double-twisted substructure
Fluorine NMR
Spectral simulation

Access to Document

10.1016/j.cplett.2018.08.056

https://hdl.handle.net/11579/180551

Cite this

@article{baa5ff08cc7c4bfbb22389744c15bf0b,

title = "On the blue phase structure of hydrogen-bonded liquid crystals via 19F NMR",

abstract = "19F NMR spectra are simulated for blue phase I of FPHG(St1.5∗Ap1.5) based on a model of a double-twisted substructure inside cylinders that form a body-centred cubic lattice. A kinetic matrix is included to describe jump processes over quarter pitch lengths. Though the lines in the NMR spectra are broad and featureless, changes in the widths and positions with temperature are well described by the blue phase model structure. The spectra in the chiral nematic N∗phase are also simulated. Dynamics in the BP I are found to be slower than in the N∗phase.",

keywords = "Blue phase I, Chiral nematic, Diffusion rate, Double-twisted substructure, Fluorine NMR, Spectral simulation, Blue phase I, Chiral nematic, Diffusion rate, Double-twisted substructure, Fluorine NMR, Spectral simulation",

author = "Dong, \{R. Y.\} and Michal, \{C. A.\} and MARCO SACCONE and M. Spengler and C. Wolper and M. Giese",

year = "2018",

doi = "10.1016/j.cplett.2018.08.056",

language = "English",

volume = "710",

pages = "39--44",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - On the blue phase structure of hydrogen-bonded liquid crystals via 19F NMR

AU - Dong, R. Y.

AU - Michal, C. A.

AU - SACCONE, MARCO

AU - Spengler, M.

AU - Wolper, C.

AU - Giese, M.

PY - 2018

Y1 - 2018

N2 - 19F NMR spectra are simulated for blue phase I of FPHG(St1.5∗Ap1.5) based on a model of a double-twisted substructure inside cylinders that form a body-centred cubic lattice. A kinetic matrix is included to describe jump processes over quarter pitch lengths. Though the lines in the NMR spectra are broad and featureless, changes in the widths and positions with temperature are well described by the blue phase model structure. The spectra in the chiral nematic N∗phase are also simulated. Dynamics in the BP I are found to be slower than in the N∗phase.

AB - 19F NMR spectra are simulated for blue phase I of FPHG(St1.5∗Ap1.5) based on a model of a double-twisted substructure inside cylinders that form a body-centred cubic lattice. A kinetic matrix is included to describe jump processes over quarter pitch lengths. Though the lines in the NMR spectra are broad and featureless, changes in the widths and positions with temperature are well described by the blue phase model structure. The spectra in the chiral nematic N∗phase are also simulated. Dynamics in the BP I are found to be slower than in the N∗phase.

KW - Blue phase I

KW - Chiral nematic

KW - Diffusion rate

KW - Double-twisted substructure

KW - Fluorine NMR

KW - Spectral simulation

KW - Blue phase I

KW - Chiral nematic

KW - Diffusion rate

KW - Double-twisted substructure

KW - Fluorine NMR

KW - Spectral simulation

UR - https://iris.uniupo.it/handle/11579/180551

U2 - 10.1016/j.cplett.2018.08.056

DO - 10.1016/j.cplett.2018.08.056

M3 - Article

SN - 0009-2614

VL - 710

SP - 39

EP - 44

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

On the blue phase structure of hydrogen-bonded liquid crystals via 19F NMR

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this