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FT-IR and two-dimensional correlation analysis of the liquid crystalline phase transitions in the 4-bromobenzylidene-4'-alkyloxyanilines.
Autorzy
Rok wydania
2013
Czasopismo
Journal of Physical Chemistry B
Numer woluminu
117
Strony
10612-10618
DOI
10.1021/jp4042155
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The FT-IR spectra of the 4-bromobenzylidene-4′-alkyloxyanilines (nBBAA, for n = 4–12) were studied as a function of temperature. The molten state of the alkyloxy chain in smectic B (SmB), smectic A (SmA), and isotropic phases was analyzed. Generalized two-dimensional (2D) correlation spectroscopy has been applied to study changes in the conformational structure and specific interactions of molecules at phase transition in homologous series of nBBAA. A windowed autocorrelation analysis enabled us to locate transition points basing on the spectroscopic data.
Adres publiczny
http://dx.doi.org/10.1021/jp4042155
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