期刊
EUROPEAN PHYSICAL JOURNAL E
卷 18, 期 3, 页码 253-258出版社
SPRINGER
DOI: 10.1140/epje/e2005-00033-x
关键词
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A vast majority of compounds with bent core or banana shaped molecules exhibit the phase sequence B-6-B-1-B-2 as the chain length is increased in a homologous series. The B-6 phase has an intercalated fluid lamellar structure with a layer spacing of half the molecular length. The B-1 phase has a two dimensionally periodic rectangular columnar structure. The B-2 phase has a monolayer fluid lamellar structure with molecules tilted with respect to the layer normal. Neglecting the tilt order of the molecules in the B-2 phase, we have developed a frustrated packing model to describe this phase sequence qualitatively. The model has some analogy with that of the frustrated smectics exhibited by highly polar rod like molecules.
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