| Paper | Title | Page |
|---|---|---|
THPSC066 |
Diagnostics the Structure of Liquid-Crystal Phase on the Basis of Changes the Spectra of Dyes | |
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| Molecule of 4-pentyl-4'-cyanobiphenyl (CB5), its dimers and their interaction with such dyes as diaminonitrobenzol, nitrozodimethylaniline and dimetilaminonitrostirol were investigated by the method of density functional theory (DFT). The electronic absorption spectra of isolated dye molecules and the resulting complexes with 4-pentyl-4'-cyanobiphenyl were calculated. It was shown that the shift of the absorption bands in the spectra of the dye depends on the structure of the complex. The shift and splitting of the bands minor impurity dye molecules placed in the liquid crystal gives an indication of the mesophase structure. | ||
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