Deuterium NMR spectroscopy is a very powerful technique for studying partially or totally ordered systems, such as liquid crystals (LCs) and polymers. LCs represent a branch of the most general class of soft materials, with peculiar physical and chemical properties which attracted scientific attention for their potentiality for technological applications. From a chemical point of view, there are three aspects in which (2)H NMR could provide significant insights: (i) the conformational and structural properties; (ii) the molecular dynamics and mobility; and (iii) the orientational order and aggregation/distribution of molecules in the different liquid-crystalline phases. In this work, some of the recent developments in this field are discussed, focusing on two main topics: (1) the molecular dynamics of the smectic liquid-crystalline phases formed by rod-like molecules and (2) the unusual orientational and dynamic properties of the new liquid-crystal line mesophases formed by banana-shaped molecules (BLCs).
|Autori interni:||DOMENICI, VALENTINA|
|Titolo:||Order and dynamics of rod-like and banana-shaped liquid crystals by 2H NMR|
|Anno del prodotto:||2007|
|Digital Object Identifier (DOI):||10.1351/pac200779010021|
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