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Induction of a cholesteric mesophase in a nematic liquid crystal by some optically active alcohols: A possible method for the correlation of configurations

✍ Scribed by G. Gottarelli; B. Samorǐ; S. Marzocchi; C. Stremmenos


Publisher
Elsevier Science
Year
1975
Tongue
French
Weight
215 KB
Volume
16
Category
Article
ISSN
0040-4039

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A model for the induction of a cholester
✍ G. Gottarelli; B. Samorǐ; C. Stremmenos 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 380 KB

Solutions of (-)Sa-phenylethanol and benzyl alcohol in MBBA have been studied by IR and CD spectroscopy. From the data, a possible mechanism is deduced by which (-)Sa-phenylethanoi and analogous derivatives induce a right handed cholesteric mesophase in MBBX.

Induction of optical activity in a nemat
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The heiical twistin:: powe: of I-menthol in n ncmntic solvent (RIBBA) has been measured bg mcnns of kduced optica! activity and circular dichroism. The optical rotatory dispersion curve is estremcly broadened corresponding to a widened region of total reflection. The induced t\vist sharply increases