New wide-stability four-ring azo/ester/Schiff base liquid crystals: Synthesis, mesomorphic, photophysical, and DFT approaches

NHS Ahmed, GR Saad, HA Ahmed, M Hagar - RSC advances, 2020 - pubs.rsc.org
New four-groups-based azo/ester/Schiff base liquid crystals,((4-substitutedphenylimino)
methyl) phenyl 4-[2-(4-alkoxyhenyl) diazenyl] benzoate, Ina–d, were synthesized and …

Wide Nematogenic azomethine/ester liquid crystals based on new biphenyl derivatives: Mesomorphic and computational studies

FS Alamro, DA Tolan, AM El-Nahas, HA Ahmed… - Molecules, 2022 - mdpi.com
The thermal stability and mesomorphic behavior of a new biphenyl azomethine liquid crystal
homologues series,(E)-4-(([1, 1′-biphenyl]-4-ylmethylene) amino) phenyl 4-(alkoxy) …

Mesophase behavior and DFT conformational analysis of new symmetrical diester chalcone liquid crystals

M Hagar, HA Ahmed, TH El-Sayed… - Journal of Molecular …, 2019 - Elsevier
Synthesis, geometrical structures, conformational analysis, mesomorphic and optical
characterizations of new angular chalcone liquid crystals, 4-(1, 5-(3-oxopenta-1, 4-dienyl)) …

New two rings Schiff base liquid crystals; ball mill synthesis, mesomorphic, Hammett and DFT studies

SS Nafee, M Hagar, HA Ahmed, OA Alhaddad… - Journal of Molecular …, 2020 - Elsevier
New analogues series of two rings Schiff base comprising different terminal polar
substituents changed between N (CH 3) 2, CH 3 O, H, Cl, F, CN and NO 2 were prepared …

New symmetric/unsymmetrical self-assembling salicylaldimine-chalcones: synthesis, photophysical study and DFT approach

K Katariya, R Soni, KJ Nakum, D Patel, S Nada… - Journal of Molecular …, 2024 - Elsevier
To understand the impact of chalcone unit, lateral hydroxy group and different alkoxy chain
length on the overall mesomorphic properties, new symmetric/unsymmetrical salicylaldimine …

New nitro-laterally substituted azomethine derivatives; Synthesis, mesomorphic and computational characterizations

MA El-Atawy, MM Naoum, SA Al-Zahrani, HA Ahmed - Molecules, 2021 - mdpi.com
Two new homologues series, based on two rings of the azomethine central group bearing
the terminal alkoxy group of various chain lengths, were prepared. The alkoxy chain length …

[HTML][HTML] Synthesis and characterization of new imine liquid crystals based on terminal perfluoroalkyl group

MA El-Atawy, AZ Omar, ML Alazmi, MS Alsubaie… - Heliyon, 2023 - cell.com
New organic derivatives named,(E)-3 (or4)-(alkyloxy)-N-{(trifluoromethyl) benzylidene}
aniline, 1a-f, were synthesized and examined their liquid crystalline behaviors. FT-IR, 1 H …

Mesomorphic and geometrical orientation study of the relative position of fluorine atom in some thermotropic liquid crystal systems

HA Ahmed, M Hagar, OA Alhaddad - Liquid Crystals, 2020 - Taylor & Francis
New series of the Schiff base/esters, 4-((2′-or 3′-fluorophenylimino) methyl) phenyl-4 ″-
alkoxy benzoates were prepared and their mesophase behaviour investigated. The type of …

Glycine methyl ester based Schiff base bearing long alkoxy arm and its zinc (II) and copper (II) complexes: Synthesis, mesomorphism, photoluminescence, CT-DNA …

B Kharpan, S Paul, A Shyam, PC Paul… - Journal of Molecular …, 2023 - Elsevier
A new photoluminescent mesogenic glycine methyl ester based Schiff base ligand and its
zinc (II) and copper (II) complexes have been synthesised. The compounds were …

Schiff base/ester liquid crystals with different lateral substituents: Mesophase behaviour and DFT calculations

HA Ahmed, M Hagar, TH El-Sayed, R B. Alnoman - Liquid Crystals, 2019 - Taylor & Francis
ABSTRACT Four new groups of 4-((2ʹ-substitutedphenylimino) methyl) phenyl-4”-alkoxy
benzoates, I n ad, of Schiff base ester liquid crystals, were prepared and investigated for …