Evidence of tilt angle in an 8CB-10CB mixture

G. A. Oweimreen; J. S. Hwang

doi:10.1016/S0009-2614(00)01465-2

Evidence of tilt angle in an 8CB-10CB mixture

G. A. Oweimreen^*
, J. S. Hwang

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

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

11 Scopus citations

Abstract

EPR spectra using perdeuterated 4-oxo-2,2,6,6-tetramethylpiperidine-1-oxy as spin probe on a mixture of p-n-octyl-p^′-cyanobiphenyl and p-n-decyl-p^′-cyanobiphenyl at a 0.30106 mole fraction for p-n-decyl-p^′-cyanobiphenyl revealed the existence of a tilt angle that has been attributed to the longer p-n-decyl-p^′-cyanobiphenyl molecules. Temperature control to within ±0.01°C revealed the existence of two-phase regions across the smectic A-to-nematic and the nematic-to-isotropic transitions which point to first-order transitions.

Original language	English
Pages (from-to)	83-88
Number of pages	6
Journal	Chemical Physics Letters
Volume	334
Issue number	1-3
DOIs	https://doi.org/10.1016/S0009-2614(00)01465-2
State	Published - 2 Feb 2001

Bibliographical note

Funding Information:
The authors thank King Fahd University of Petroleum and Minerals (KFUPM) for support of this research. Technical and experimental assistance from Mr. M.M. Saleem is also acknowledged.

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/S0009-2614(00)01465-2

Cite this

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title = "Evidence of tilt angle in an 8CB-10CB mixture",

abstract = "EPR spectra using perdeuterated 4-oxo-2,2,6,6-tetramethylpiperidine-1-oxy as spin probe on a mixture of p-n-octyl-p′-cyanobiphenyl and p-n-decyl-p′-cyanobiphenyl at a 0.30106 mole fraction for p-n-decyl-p′-cyanobiphenyl revealed the existence of a tilt angle that has been attributed to the longer p-n-decyl-p′-cyanobiphenyl molecules. Temperature control to within ±0.01°C revealed the existence of two-phase regions across the smectic A-to-nematic and the nematic-to-isotropic transitions which point to first-order transitions.",

author = "Oweimreen, \{G. A.\} and Hwang, \{J. S.\}",

note = "Funding Information: The authors thank King Fahd University of Petroleum and Minerals (KFUPM) for support of this research. Technical and experimental assistance from Mr. M.M. Saleem is also acknowledged. ",

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doi = "10.1016/S0009-2614(00)01465-2",

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T1 - Evidence of tilt angle in an 8CB-10CB mixture

AU - Oweimreen, G. A.

AU - Hwang, J. S.

N1 - Funding Information: The authors thank King Fahd University of Petroleum and Minerals (KFUPM) for support of this research. Technical and experimental assistance from Mr. M.M. Saleem is also acknowledged.

PY - 2001/2/2

Y1 - 2001/2/2

N2 - EPR spectra using perdeuterated 4-oxo-2,2,6,6-tetramethylpiperidine-1-oxy as spin probe on a mixture of p-n-octyl-p′-cyanobiphenyl and p-n-decyl-p′-cyanobiphenyl at a 0.30106 mole fraction for p-n-decyl-p′-cyanobiphenyl revealed the existence of a tilt angle that has been attributed to the longer p-n-decyl-p′-cyanobiphenyl molecules. Temperature control to within ±0.01°C revealed the existence of two-phase regions across the smectic A-to-nematic and the nematic-to-isotropic transitions which point to first-order transitions.

AB - EPR spectra using perdeuterated 4-oxo-2,2,6,6-tetramethylpiperidine-1-oxy as spin probe on a mixture of p-n-octyl-p′-cyanobiphenyl and p-n-decyl-p′-cyanobiphenyl at a 0.30106 mole fraction for p-n-decyl-p′-cyanobiphenyl revealed the existence of a tilt angle that has been attributed to the longer p-n-decyl-p′-cyanobiphenyl molecules. Temperature control to within ±0.01°C revealed the existence of two-phase regions across the smectic A-to-nematic and the nematic-to-isotropic transitions which point to first-order transitions.

UR - https://www.scopus.com/pages/publications/0009385976

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DO - 10.1016/S0009-2614(00)01465-2

M3 - Article

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EP - 88

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Evidence of tilt angle in an 8CB-10CB mixture

Abstract

Bibliographical note

ASJC Scopus subject areas

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