Core chirality based tailoring of the liquid crystalline properties of supermolecular tetrapedes

Abdelhak Belaissaoui; Stephen J. Cowling; Isabel M. Saez; John W. Goodby

doi:10.1039/b927008f

Core chirality based tailoring of the liquid crystalline properties of supermolecular tetrapedes

Abdelhak Belaissaoui, Stephen J. Cowling, Isabel M. Saez, John W. Goodby

Chemistry

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

Abstract

A series of novel supermolecular star-shaped tetrapede chiral liquid crystals (LCs), incorporating carbohydrates, methyl alpha-D-glucopyranoside or methyl alpha-D-mannopyranoside, as chiral cores surrounded by four cyanobiphenyl mesogenic groups linked by either C6 or C11 alkyl chain spacers, have been synthesised. These non-conventional thermotropic carbohydrate-based chiral liquid crystals exhibit chiral nematic and smectic A mesophases over broad temperature ranges. The mesomorphic properties were characterized by polarized optical microscopy (POM) and differential scanning calorimetry (DSC). The effect of the flexible spacer length in addition to the stereogenic and conformational properties of the chiral cores is discussed.

Original language	English
Pages (from-to)	1958-1963
Number of pages	6
Journal	Soft Matter
Volume	6
Issue number	9
DOIs	https://doi.org/10.1039/b927008f
Publication status	Published - 2010

Keywords

TUNNELING MICROSCOPY
COLUMNAR MESOPHASES
POLYMERS
MESOGENS
MESOMORPHISM
DYNAMICS
PHASES

Access to Document

10.1039/b927008f

http://pubs.rsc.org/en/Content/ArticleLanding/2010/SM/b927008f

Cite this

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title = "Core chirality based tailoring of the liquid crystalline properties of supermolecular tetrapedes",

abstract = "A series of novel supermolecular star-shaped tetrapede chiral liquid crystals (LCs), incorporating carbohydrates, methyl alpha-D-glucopyranoside or methyl alpha-D-mannopyranoside, as chiral cores surrounded by four cyanobiphenyl mesogenic groups linked by either C6 or C11 alkyl chain spacers, have been synthesised. These non-conventional thermotropic carbohydrate-based chiral liquid crystals exhibit chiral nematic and smectic A mesophases over broad temperature ranges. The mesomorphic properties were characterized by polarized optical microscopy (POM) and differential scanning calorimetry (DSC). The effect of the flexible spacer length in addition to the stereogenic and conformational properties of the chiral cores is discussed.",

keywords = "TUNNELING MICROSCOPY, COLUMNAR MESOPHASES, POLYMERS, MESOGENS, MESOMORPHISM, DYNAMICS, PHASES",

author = "Abdelhak Belaissaoui and Cowling, {Stephen J.} and Saez, {Isabel M.} and Goodby, {John W.}",

year = "2010",

doi = "10.1039/b927008f",

language = "English",

volume = "6",

pages = "1958--1963",

journal = "Soft Matter",

issn = "1744-683X",

publisher = "The Royal Society of Chemistry",

number = "9",

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TY - JOUR

T1 - Core chirality based tailoring of the liquid crystalline properties of supermolecular tetrapedes

AU - Belaissaoui, Abdelhak

AU - Cowling, Stephen J.

AU - Saez, Isabel M.

AU - Goodby, John W.

PY - 2010

Y1 - 2010

N2 - A series of novel supermolecular star-shaped tetrapede chiral liquid crystals (LCs), incorporating carbohydrates, methyl alpha-D-glucopyranoside or methyl alpha-D-mannopyranoside, as chiral cores surrounded by four cyanobiphenyl mesogenic groups linked by either C6 or C11 alkyl chain spacers, have been synthesised. These non-conventional thermotropic carbohydrate-based chiral liquid crystals exhibit chiral nematic and smectic A mesophases over broad temperature ranges. The mesomorphic properties were characterized by polarized optical microscopy (POM) and differential scanning calorimetry (DSC). The effect of the flexible spacer length in addition to the stereogenic and conformational properties of the chiral cores is discussed.

AB - A series of novel supermolecular star-shaped tetrapede chiral liquid crystals (LCs), incorporating carbohydrates, methyl alpha-D-glucopyranoside or methyl alpha-D-mannopyranoside, as chiral cores surrounded by four cyanobiphenyl mesogenic groups linked by either C6 or C11 alkyl chain spacers, have been synthesised. These non-conventional thermotropic carbohydrate-based chiral liquid crystals exhibit chiral nematic and smectic A mesophases over broad temperature ranges. The mesomorphic properties were characterized by polarized optical microscopy (POM) and differential scanning calorimetry (DSC). The effect of the flexible spacer length in addition to the stereogenic and conformational properties of the chiral cores is discussed.

KW - TUNNELING MICROSCOPY

KW - COLUMNAR MESOPHASES

KW - POLYMERS

KW - MESOGENS

KW - MESOMORPHISM

KW - DYNAMICS

KW - PHASES

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U2 - 10.1039/b927008f

DO - 10.1039/b927008f

M3 - Article

SN - 1744-683X

VL - 6

SP - 1958

EP - 1963

JO - Soft Matter

JF - Soft Matter

IS - 9

ER -

Core chirality based tailoring of the liquid crystalline properties of supermolecular tetrapedes

Abstract

Keywords

Access to Document

Other files and links

Proposal 05-SONS-FP-014 Liquid Crystal

Cite this

Core chirality based tailoring of the liquid crystalline properties of supermolecular tetrapedes

Abstract

Keywords

Access to Document

Other files and links

Projects

Proposal 05-SONS-FP-014 Liquid Crystal

Cite this