Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Laurence C. Abbott"'
Publikováno v:
Liquid Crystals. :1-21
In this article, we report on the synthesis of chiral bimesogens that possess silyloxy central linking groups. On first examination of the mesomorphic properties of the materials by X-ray diffraction and electrical field studies we came to the conclu
Publikováno v:
Physical Chemistry Chemical Physics. 25:10367-10383
Computational calculations predict the dichroic ratios of a range of anthraquinone and azo dyes in a nematic liquid crystal host, as observed experimentally from polarized spectra of aligned guest–host samples.
Publikováno v:
Soft Matter. 15:7722-7732
Temperature-dependent X-ray scattering studies have been carried out on 4-undecyloxy-4′-cyanobiphenyl (11OCB) and 4-(12,12-dimethyltridecyloxy)-4′-cyanobiphenyl (t-Bu-11OCB) in the smectic A phase, from which their layer spacings and translationa
Publikováno v:
Physical Chemistry Chemical Physics. 18:20651-20663
Five anthraquinone dyes with bis(4-propylphenyl) substituents, connected via sulfide or amine linking groups at the 1,5-positions or directly at the 2,6-positions, have been studied as guests in the nematic liquid crystal host, E7. Polarized UV-visib
Publikováno v:
Physical chemistry chemical physics : PCCP. 19(1)
An assessment of five different definitions of the principal molecular axis along which molecules align in a nematic liquid crystal system has been made by analysing fully atomistic molecular dynamics (MD) simulations of a set of anthraquinone dyes i
Autor:
Stephen Norman Batchelor, Lisinka Jansen, Laurence C. Abbott, John Oakes, John R. Lindsay Smith, John N. Moore
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 218:11-16
Ultrafast time-resolved UV–visible absorption spectroscopy has been used to study four model azo dyes and five commercial azo dyes. All of the dyes have been found to show strong bleaching of their ground-state absorption bands on photoexcitation,
Publikováno v:
The Journal of Physical Chemistry A. 113:6091-6103
Reductive reaction mechanisms of the azo dye Orange II (Acid Orange 7) in aqueous solution have been studied from radical intermediates through to the final products using a combination of nanosecond time-resolved UV-visible absorption spectroscopy,
Autor:
Stephen Norman Batchelor, Laurence C. Abbott, Bruce C. Gilbert, John Oakes, Adrian C. Whitwood, John R. Lindsay Smith, John N. Moore
Publikováno v:
The Journal of Physical Chemistry A. 109:2894-2905
The structure and bonding of the azo dye Orange II (Acid Orange 7) in parent and reduced forms have been studied using NMR, infrared, Raman, UV-visible, and electron paramagnetic resonance (EPR) spectroscopy, allied with density functional theory (DF
Autor:
Laurence C. Abbott, Stephen Norman Batchelor, John Oakes, John R. Lindsay Smith, John N. Moore
Publikováno v:
The Journal of Physical Chemistry A. 108:10208-10218
The structure and spectroscopy of the bis-azo dye Direct Blue 1 have been studied using semiempirical, Hartree−Fock, and density functional theory (DFT) calculations, and the results have been compared with those from experiment. The calculated dye
Autor:
and John R. Lindsay Smith, Stephen Norman Batchelor, John Oakes, Laurence C. Abbott, John N. Moore
Publikováno v:
The Journal of Physical Chemistry B. 108:13726-13735
The intermolecular interactions of the bis-azo dye Direct Blue 1 (Chicago Sky Blue 6B) have been studied as a function of concentration in aqueous solution and in cellophane using UV−visible absorption, NMR, and resonance Raman spectroscopy. UV−v