Molecular complexity and the control of self-organising processes
By John W. Goodby, I. Sáez, S. Cowling, Julita S. Gasowska, Robert A. MacDonald, Susan Sia, P. Watson, K. Toyne, M. Hird, R. Lewis and 2 more. 2009
138 citations recorded by the source corpus.
In this article we investigate the complexity of the molecular architectures of liquid crystals based on rod-like mesogens. Starting from simple monomeric systems founded on fluoroterphenyls, we first examine the effects of aromatic core structure on mesophase formation from the viewpoint of allowable polar interactions, and then we model these interactions as a function of terminal aliphatic chain length. By incorporating a functional group at the end of one, or both, of the aliphatic chains we study the effects caused by intermolecular interfacial interactions in lamellar phases, and in particular the formation of synclinic or anticlinic modifications. We then develop these ideas with respect to dimers, trimers, tetramers, etc. We show, for dendritic systems, that at a certain level of molecular complexity the local mesogenic interactions become irrelevant, and it is gross molecular shape that determines mesophase stability. The outcome of these studies is to link the complexity of the molecular interactions at the nanoscale level, which lead to the creation of the various liquid-crystalline polymorphs, with the formation of mesophases that are dependent on complex shape dependencies for mesoscopic supermolecular architectures.
Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry, Organic Chemistry
View Paper: https://www.semanticscholar.org/paper/033a18a4ffe39e6d15156e56db32b61e4c3f9592
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In Electronic, Optical and Magnetic Materials
In Materials Chemistry
In Organic Chemistry
Citations in the corpus
- Ionic Liquid Crystals: Versatile Materials. (2016, background): “A rod-like cation shape was also found in the crystal structures of [C12C12im][I], [C12C12im][I3], and [C12C12im][B(CN)4] (see above), but in those cases the ndodecyl chains interdigitate.(548) The cations of 19-14 form ionic monolayers within the lamellar crystalline structure, in contrast to the u”