Synthesis and properties of new liquid crystals derivatives of 2,7-diethynyl-9,9-dihexylfluorene

Mauricio Morel, Carlos Aguilera, Verónica Jiménez, Luis Basáez, Phillip Gebhardt, Scarlette Heggie

Resultado de la investigación: Article

4 Citas (Scopus)

Resumen

We present a synthetic strategy to obtain a 2,7-diethynyl-9,9-dihexylfluorene-based framework which we modified with aromatic rings and terminal alkoxy chains to obtain new liquid crystals. Two of the three series synthesised present mesomorphic behaviour with the characteristic Schlieren texture of nematic phases. The presence of fluorene gave rise to liquid crystals which emit blue light. Thermal and electrochemical stability were investigated, revealing high decomposition temperature and a wide potential application window, respectively. Computational calculations were performed on the optimised geometries of compounds in order to compare experimental and theoretical properties. The optical, electrochemical and theoretical band gap were determined and compared.

Idioma originalEnglish
Páginas (desde-hasta)847-856
Número de páginas10
PublicaciónLiquid Crystals
Volumen39
N.º7
DOI
EstadoPublished - jul 2012

Huella dactilar

Liquid Crystals
Liquid crystals
liquid crystals
Derivatives
synthesis
Energy gap
thermal stability
textures
Textures
Decomposition
decomposition
Geometry
rings
geometry
Temperature
temperature
Hot Temperature
fluorene
alkoxyl radical

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Citar esto

Morel, Mauricio ; Aguilera, Carlos ; Jiménez, Verónica ; Basáez, Luis ; Gebhardt, Phillip ; Heggie, Scarlette. / Synthesis and properties of new liquid crystals derivatives of 2,7-diethynyl-9,9-dihexylfluorene. En: Liquid Crystals. 2012 ; Vol. 39, N.º 7. pp. 847-856.
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abstract = "We present a synthetic strategy to obtain a 2,7-diethynyl-9,9-dihexylfluorene-based framework which we modified with aromatic rings and terminal alkoxy chains to obtain new liquid crystals. Two of the three series synthesised present mesomorphic behaviour with the characteristic Schlieren texture of nematic phases. The presence of fluorene gave rise to liquid crystals which emit blue light. Thermal and electrochemical stability were investigated, revealing high decomposition temperature and a wide potential application window, respectively. Computational calculations were performed on the optimised geometries of compounds in order to compare experimental and theoretical properties. The optical, electrochemical and theoretical band gap were determined and compared.",
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Synthesis and properties of new liquid crystals derivatives of 2,7-diethynyl-9,9-dihexylfluorene. / Morel, Mauricio; Aguilera, Carlos; Jiménez, Verónica; Basáez, Luis; Gebhardt, Phillip; Heggie, Scarlette.

En: Liquid Crystals, Vol. 39, N.º 7, 07.2012, p. 847-856.

Resultado de la investigación: Article

TY - JOUR

T1 - Synthesis and properties of new liquid crystals derivatives of 2,7-diethynyl-9,9-dihexylfluorene

AU - Morel, Mauricio

AU - Aguilera, Carlos

AU - Jiménez, Verónica

AU - Basáez, Luis

AU - Gebhardt, Phillip

AU - Heggie, Scarlette

PY - 2012/7

Y1 - 2012/7

N2 - We present a synthetic strategy to obtain a 2,7-diethynyl-9,9-dihexylfluorene-based framework which we modified with aromatic rings and terminal alkoxy chains to obtain new liquid crystals. Two of the three series synthesised present mesomorphic behaviour with the characteristic Schlieren texture of nematic phases. The presence of fluorene gave rise to liquid crystals which emit blue light. Thermal and electrochemical stability were investigated, revealing high decomposition temperature and a wide potential application window, respectively. Computational calculations were performed on the optimised geometries of compounds in order to compare experimental and theoretical properties. The optical, electrochemical and theoretical band gap were determined and compared.

AB - We present a synthetic strategy to obtain a 2,7-diethynyl-9,9-dihexylfluorene-based framework which we modified with aromatic rings and terminal alkoxy chains to obtain new liquid crystals. Two of the three series synthesised present mesomorphic behaviour with the characteristic Schlieren texture of nematic phases. The presence of fluorene gave rise to liquid crystals which emit blue light. Thermal and electrochemical stability were investigated, revealing high decomposition temperature and a wide potential application window, respectively. Computational calculations were performed on the optimised geometries of compounds in order to compare experimental and theoretical properties. The optical, electrochemical and theoretical band gap were determined and compared.

KW - ethynyl

KW - fluorene

KW - luminescent

KW - properties and theoretical studies

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U2 - 10.1080/02678292.2012.684071

DO - 10.1080/02678292.2012.684071

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VL - 39

SP - 847

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JO - Liquid Crystals

JF - Liquid Crystals

SN - 0267-8292

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