作者: Sosale Chandrasekhar
DOI:
关键词: Metastability 、 Chiral symmetry breaking 、 Mesophase 、 Liquid crystal 、 Field (physics) 、 Chemical physics 、 Enantiomer 、 Chirality (chemistry) 、 Racemic mixture
摘要: It is argued that the presumed mesophase theory of liquid crystals, which has evolved over preceding century and currently in vogue, not only largely conjectural but also ignores fundamental theoretical principles key experimental observations. Essentially, it unsupported by hard evidence, view a large collection molecules can remain both ordered fluid wide temperature range be challenged. Current overlooks apparently unexceptional effects crystals on polarized light, indicate involvement chirality (cf. crossed-polarizers experiment). An alternative model proposed herein based idea chiral symmetry breaking property matter (deriving from thermodynamic advantage entropy mixing racemate). Thus, even achiral prefer to adopt conformations when possible, would open kinetic channel non-equilibrium state as whole. This happen if racemic mixture metastable conformers forms ‘pseudo-conglomerate’, with ‘like’ enantiomers aggregating together. ultimately lead suspension nanoparticles medium possibly chiral, because persistent proximity nanoparticles. crystalline explain its amazing electro-optical properties invoking development surface charges an electrical field; this alter their aggregation behavior, hence optical properties. These phenomenal characteristics are manifested under suitable conditions leading state.