Magdi M. Naoum

TL;DR: In this article, the effects of structural changes on phase transitions in these two series of compounds are discussed in terms of dipole and mesomeric effects, and the apparent solution dipole moment measured using cyclohexane as a solvent.

TL;DR: In this paper, eight homologous series of 2-or 3-) substituted phenyl 4-alkoxy phenylazo (Ina-h) benzoates (ina−h) were prepared in which, within each homologously series, the length of the terminal alkoxy group varies between 6, 8, 10 and 12 carbons, while the other substituent, X, is a laterally attached polar group that alternatively changed from CH3, H, F, Br and CN.

TL;DR: In this article, four pyridine-based derivatives (I 10, I 12, I 14, and I 18) with molecular formula CnH2n+1O-C6H4COOC6H 4-N = N-C5H4N, that differ from each other in the number of carbon atoms, n, were prepared and characterized for their mesophase behavior.

TL;DR: In this article, five homologous series of 4-substituted phenyl 4′-(4″-alkoxy phenylazo) benzoates (Ina−−e) were prepared in which, within each homologic series, the length of the terminal alkoxy group varies between 8, 10, 12, 14 and 16 carbons, while the other terminal substituent, X, is a polar group that alternatively changed from CH3O, CH3, H, Br and CN groups.

TL;DR: In this article, a series of hydrogen-bonded supramolecular complexes, In/IIm, were prepared and investigated for their mesophase behaviour, and the results showed that the prepared complexes are dimorphic, possessing smectic C (SmC) and nematic (N) phases with relatively wide ranges.