Dr. Mohamed A. Alaasar

Profil

Derzeitige StellungProfessor W-2 und Äquivalente
FachgebietOrganische Molekülchemie,Präparative und Physikalische Chemie von Polymeren
Keywords4-cyanoresorcinol, Biaxial nemtic phases, Liquid Crystals

Aktuelle Kontaktadresse

LandÄgypten
OrtGiza
Universität/InstitutionCairo University
Institut/AbteilungDepartment of Chemistry, Faculty of Science

Gastgeber*innen während der Förderung

Prof. Dr. Carsten TschierskeInstitut für Organische Chemie, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale)
Beginn der ersten Förderung01.09.2012

Programm(e)

2012Humboldt-Forschungsstipendien-Programm für Postdocs

Publikationen (Auswahl)

2019M Alaasar, S Poppe, C Tschierske: Photoresponsive halogen bonded polycatenar liquid crystals. In: Journal of Molecular Liquids, 2019, 233-240
2018M Alaasar, C Tschierske: Nematic phases driven by hydrogen-bonding in liquid crystalline nonsymmetric dimers. In: Liquid Crystals, 2018,
2018HA Ahmed, M Hagar, M Alaasar, M Naoum: Wide nematic phases induced by hydrogen-bonding. In: Liquid Crystals, 2018,
2017M Alaasar, S Poppe, C Kerzig, C Klopp, A Eremin, C Tschierske: Cluster phases of 4-cyanoresorcinol derived hockey-stick liquid crystals. In: Journal of Materials Chemistry C , 2017, 8454-8468
2017M Alaasar, S Poppe, C Tschierske: Cybotactic nematic phases of photoisomerisable hockey-stick liquid crystals. In: Liquid Crystals, 2017, 729-737
2017M Alaasar, M Prehm, S Poppe, C Tschierske: Development of Polar Order by Liquid?Crystal Self?Assembly of Weakly Bent Molecules. In: Chemistry–A European Journal , 2017, 5541-5556
2017Emergence of polar order and tilt in terephthalate based bent-core liquid crystals: Emergence of polar order and tilt in terephthalate based bent-core liquid crystals. In: Emergence of polar order and tilt in terephthalate based bent-core liquid crystals, 2017, 5895-5905
2017M Alaasar, S Poppe, Q Dong, F Liu, C Tschierske: Isothermal Chirality Switching in Liquid-Crystalline Azobenzene Compounds with Non-Polarized Light. In: Angewandte Chemie International Edition, 2017, 10801-10805
2017M Alaasar, C Tschierske: Non-symmetric ether-linked liquid crystalline dimers with a highly polar end group. In: Liquid Crystals, 2017, 387-393
2017Michal Kohout, Mohamed Alaasar, Anna Poryvai, Vladimíra Novotná, Silvio Poppe, Carsten Tschierske, Ji?í Svoboda: Photosensitive bent-core liquid crystals based on methyl substituted 3-hydroxybenzoic acid. In: RSC Advances, 2017, 35805-35813
2016Mohamed Alaasar: Azobenzene-containing bent-core liquid crystals: an overview. In: Liquid Crystals, 2016, 2208-2243
2016M Alaasar, M Prehm, MG Tamba, N Sebastián, A Eremin, C Tschierske: Development of Polar Order in the Liquid Crystal Phases of a 4?Cyanoresorcinol?Based Bent?Core Mesogen with Fluorinated Azobenzene Wings. In: ChemPhysChem, 2016, 278-287
2016M Alaasar, M Prehm, C Tschierske: Helical Nano?crystallite (HNC) Phases: Chirality Synchronization of Achiral Bent?Core Mesogens in a New Type of Dark Conglomerates. In: Chemistry–A European Journal , 2016, 6583-6597
2016M Alaasar, S Poppe, Q Dong, F Liu, C Tschierske: Mirror symmetry breaking in cubic phases and isotropic liquids driven by hydrogen bonding. In: Chemical Communications, 2016, 13869-13872
2016M Alaasar, M Prehm, C Tschierske: Mirror symmetry breaking in fluorinated bent-core mesogens. In: RSC Advances, 2016, 82890-82899
2016M Alaasar, M Prehm, Y Cao, F Liu, C Tschierske: Spontaneous Mirror?Symmetry Breaking in Isotropic Liquid Phases of Photoisomerizable Achiral Molecules. In: Angewandte Chemie , 2016, 320-324
2014Mohammed Alaasar, Marko Prehm, Kathrin May, Alexey Eremin and Carsten Tschierske.: 4-Cyanoresorcinol-Based Bent-Core Mesogens with Azobenzene Wings: Emergence of Sterically Stabilized Polar Order in Liquid Crystalline Phases. In: Advanced Functional Materials, 2014, 1703-1717
2014Mohamed Alaasar, Marko Prehm, Marcel Brautzsch, Carsten Tschierske: 4-Methylresorcinol based bent-core liquid crystals with azobenzene wings–a new class of compounds with dark conglomerate phases. In: Journal of Materials Chemistry C, 2014, 5487-5501
2014M Alaasar, M Prehm, M Brautzsch, C Tschierske: Dark conglomerate phases of azobenzene derived bent-core mesogens–relationships between the molecular structure and mirror symmetry breaking in soft matter. In: Soft Matter , 2014, 7285-7296
2014M Alaasar, M Prehm, M Poppe, M Nagaraj, JK Vij, C Tschierske : Development of polar order and tilt in lamellar liquid crystalline phases of a bent-core mesogen. In: Soft Matter, 2014, 5003-5016
2014M. Alaasar, M. Prehm and C. Tschierske. New azobenzene containing bent-core liquid crystals based on disubstituted resorcinol. In: Liquid Crystals, 2014, 126-136
2013Mohamed Alaasar, Marko Prehm, Mamatha Nagaraj, Jagdish K. Vij, Carsten Tschierske: A Liquid Crystalline Phase with Uniform Tilt, Local Polar Order and Capability of Symmetry Breaking. In: Advanced Materials, 2013, 2186-2191
2013Mohamed Alaasar, Marko Prehm and Carsten Tschierske.: A new room temperature dark conglomerate mesophase formed by bent-core molecules combining 4-iodoresorcinol with azobenzene units. In: Chemical Communications , 2013, 11062-11064
2013M. Alaasar, M. Prehm and C. Tschierske Influence of halogen substituent on the mesomorphic properties of five-ring banana-shaped molecules with azobenzene wings. In: Liquid Crystals, 2013, 656-668