Systematic studies on eight homologous series of supramolecular hydrogen bonded liquid crystals

Polymorphism of hydrogen-bonded star mesogens – a combinatorial DFT-D and FT-IR spectroscopy study

“…Hydrogen bonds play a vital role in supramolecular systems, since it provides a high exibility of molecular shape. Most hydrogen-bonded mesogens previously reported rely on the interaction between benzoic acid derivatives and pyridines, forming rod-shaped dimers either by homo association between the acid molecules [52][53][54] or by heterogeneous association of benzoic acid with pyridine. 45,55 For the latter, the shape is stabilized by additional interaction between the 2H of the pyridine with the carbonyl oxygen atom.…”

The use of isoxazoline and isoxazole scaffolding in the design of novel thiourea and amide liquid-crystalline compounds

“…Liquid crystals containing hydrogen bonds may exhibit a wide variety of phase polymorphism depending on the length of the chain, type of bonding and the functional groups involved [12,[28][29][30]. Many liquid crystalline compounds have been developed exploring the ability of hydrogen bonding formation between dissimilar moieties, such as alkyloxybenzoic acids [31] and alkylbenzoic and dodecane dicarboxylic acids [32].…”