Chiroptical properties of cholesteric liquid crystals induced by chiral photochromic 3,3′-dialkoxyazobenzenes

Christian Ruslim; Masaru Nakagawa; Shin'ya Morino; Kunihiro Ichimura

doi:10.1080/10587250108025281

Chiroptical properties of cholesteric liquid crystals induced by chiral photochromic 3,3′-dialkoxyazobenzenes

Christian Ruslim, Masaru Nakagawa, Shin'ya Morino, Kunihiro Ichimura

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

5 Citations (Scopus)

Abstract

The spectroscopic features and photoisomerization behaviors of chiral photochromic 3,3'-dialkoxyazobenzenes were evaluated in an isotropic solution and a nematic solvent. The effect of photoisomerization on the helical twisting power and handedness of these chiral dopants in induced cholesteric liquid crystals were studied. Depending on the distance of the chiral center from the azo-core, elongation of the helical pitch and reversion of the handedness upon E-to-Z photoisomerization were observed. These characteristics are interesting for optical devices based on light-controlled phase switching.

Original language	English
Pages (from-to)	55-62
Number of pages	8
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	365
DOIs	https://doi.org/10.1080/10587250108025281
Publication status	Published - 2001
Externally published	Yes

Keywords

Azo compounds
Chirality
Cholesteric
Photoisomerization

ASJC Scopus subject areas

Condensed Matter Physics

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10.1080/10587250108025281

Cite this

Chiroptical properties of cholesteric liquid crystals induced by chiral photochromic 3,3′-dialkoxyazobenzenes. / Ruslim, Christian; Nakagawa, Masaru; Morino, Shin'ya et al.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 365, 2001, p. 55-62.

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

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abstract = "The spectroscopic features and photoisomerization behaviors of chiral photochromic 3,3'-dialkoxyazobenzenes were evaluated in an isotropic solution and a nematic solvent. The effect of photoisomerization on the helical twisting power and handedness of these chiral dopants in induced cholesteric liquid crystals were studied. Depending on the distance of the chiral center from the azo-core, elongation of the helical pitch and reversion of the handedness upon E-to-Z photoisomerization were observed. These characteristics are interesting for optical devices based on light-controlled phase switching.",

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AU - Ruslim, Christian

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AU - Morino, Shin'ya

AU - Ichimura, Kunihiro

PY - 2001

Y1 - 2001

N2 - The spectroscopic features and photoisomerization behaviors of chiral photochromic 3,3'-dialkoxyazobenzenes were evaluated in an isotropic solution and a nematic solvent. The effect of photoisomerization on the helical twisting power and handedness of these chiral dopants in induced cholesteric liquid crystals were studied. Depending on the distance of the chiral center from the azo-core, elongation of the helical pitch and reversion of the handedness upon E-to-Z photoisomerization were observed. These characteristics are interesting for optical devices based on light-controlled phase switching.

AB - The spectroscopic features and photoisomerization behaviors of chiral photochromic 3,3'-dialkoxyazobenzenes were evaluated in an isotropic solution and a nematic solvent. The effect of photoisomerization on the helical twisting power and handedness of these chiral dopants in induced cholesteric liquid crystals were studied. Depending on the distance of the chiral center from the azo-core, elongation of the helical pitch and reversion of the handedness upon E-to-Z photoisomerization were observed. These characteristics are interesting for optical devices based on light-controlled phase switching.

KW - Azo compounds

KW - Chirality

KW - Cholesteric

KW - Photoisomerization

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Chiroptical properties of cholesteric liquid crystals induced by chiral photochromic 3,3′-dialkoxyazobenzenes

Abstract

Keywords

ASJC Scopus subject areas

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