Publications

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2007
Alaasar, M., A. Fahmi, and S. Mohammady, "Possibility of mesophase formation in some model compounds based on the N-​aryl benzamide group", Thermochimica Acta, vol. 459, pp. 40, 2007.
2008
Alaasar, M., M. Naoum, and A. Fahmi, "Supramolecular Hydrogen-​Bonded Liquid Crystals Formed from 4-​(4'-​Pyridylazophenyl)​-​4''-​alkoxy Benzoates and 4-​Substituted Benzoic Acids", Molecular Crystals and Liquid Crystals, vol. 487, pp. 74, 2008.
Alaasar, M., M. Naoum, and A. Fahmi, "Supramolecular Hydrogen-​Bonded Liquid Crystals Formed from 4-​(4'-​Pyridylazophenyl)​-​4''-​Substituted Benzoates and 4-​Alkoxybenzoic Acids", Molecular Crystals and Liquid Crystals, vol. 482, pp. 57, 2008.
2009
2011
Alaasar, M., M. Naoum, A. Fahmi, and N. Ahmed, "Effect of exchange of terminal substituents on the mesophase behavior of laterally methyl substituted phenyl azo benzoates in pure and mixed systems", Thermochimica Acta, vol. 525, issue 1, pp. 78, 2011.
Alaasar, M., M. Prehm, and C. Tschierske, "Hydrogen-​bonded supramolecular complexes formed between isophthalic acid and pyridine-​based derivatives", Liquid Crystals, vol. 38, issue 7, pp. 925, 2011.
Alaasar, M., M. Naoum, A. Fahmi, and R. Salem, "Supramolecular liquid crystals in binary and ternary systems", Thermochimica Acta, vol. 517, issue 1, pp. 63, 2011.
2012
Alaasar, M., M. Naoum, A. Fahmi, and A. Refaie, "Novel hydrogen-​bonded angular supramolecular liquid crystals", Liquid Crystals, vol. 39, issue 1, pp. 47, 2012.
2013
Alaasar, M., M. Prehm, K. May, A. Eremin, and C. Tschierske., "4-Cyanoresorcinol based bent-core mesogens with azobenzene wings – emergence of sterically stabilised polar order in liquid crystalline phases. ", Advanced Functional Materials, vol. Online, 2013.
Alaasar, M., M. Prehm, and C. Tschierske, "Influence of halogen substituent on the mesomorphic properties of five-ring banana-shaped molecules with azobenzene wings.", Liquid Crystals, vol. 40, issue 5, pp. 656, 2013.
Alaasar, M., M. Prehm, M. Nagaraj, J. K. Vij, and C. Tschierske, "A liquid crystalline phase with uniform tilt, local polar order, superstructural chirality and capability of symmetry breaking.", Advanced Materials, vol. 25, pp. 2186, 2013.
2014
Alaasar, M., M. Prehm, M. Brautzsch, and undefined, "4-Methylresorcinol based bent-core liquid crystals with azobenzene wings–a new class of compounds with dark conglomerate phases", Journal of Materials Chemistry C, vol. 2, issue 28, pp. 5487-5501, 2014.
Alaasar, M., M. Prehm, M. Brautzsch, and C. Tschierske, "Dark conglomerate phases of azobenzene derived bent-core mesogens–relationships between the molecular structure and mirror symmetry breaking in soft matter", Soft matter, vol. 10, issue 37, pp. 7285-7296, 2014.
Alaasar, M., M. Prehm, M. Poppe, M. Nagaraj, J. K. Vij, and C. Tschierske, "Development of polar order and tilt in lamellar liquid crystalline phases of a bent-core mesogen", Soft matter, vol. 10, pp. 5003-5016, 2014.
Alaasar, M., M. Prehm, and C. Tschierske, "New azobenzene containing bent-core liquid crystals based on disubstituted resorcinol. ", Liquid Crystals, vol. 41, issue 1, pp. 126, 2014.
2016
Alaasar, M., "Azobenzene-containing bent-core liquid crystals: an overview", Liquid Crystals, vol. 43, issue 13-15, pp. 2208-2243, 2016.
Alaasar, M., M. Prehm, M. - G. Tamba, N. Sebastián, A. Eremin, and C. Tschierske, "Development of Polar Order in the Liquid Crystal Phases of a 4-Cyanoresorcinol-Based Bent-Core Mesogen with Fluorinated Azobenzene Wings", ChemPhysChem, vol. 17, issue 2, pp. 278-287, 2016.
Alaasar, M., M. Prehm, Y. Cao, F. Liu, and C. Tschierske, "Dr Mohamed Alaasar Volltext@ULB Halle Spontaneous Mirror‐Symmetry Breaking in Isotropic Liquid Phases of Photoisomerizable Achiral Molecules", Angewandte Chemie International Edition, vol. 55, issue 1, pp. 312-316, 2016.
Alaasar, M., M. Prehm, and C. Tischerske, "Helical Nano‐crystallite (HNC) Phases: Chirality Synchronization of Achiral Bent‐Core Mesogens in a New Type of Dark Conglomerates", Chemistry–A European Journal, vol. 22, issue 19, pp. 6583-6597, 2016.
Alaasar, M., S. Poppe, Q. Dong, F. Liu, and C. Tschierske, "Mirror symmetry breaking in cubic phases and isotropic liquids driven by hydrogen bonding", Chemical Communications, vol. 52, issue 96, pp. 13869-13872, 2016.
Alaasar, M., M. Prehm, and C. Tschierske, "Mirror symmetry breaking in fluorinated bent-core mesogens", RSC Advances, vol. 6, issue 86, pp. 82890-82899, 2016.
2017
Alaasar, M., S. Poppe, C. Kerzig, C. Klopp, A. Eremin, and C. Tschierske, "Cluster phases of 4-cyanoresorcinol derived hockey-stick liquid crystals", Journal of Materials Chemistry C, vol. 5, pp. 8454-8468, 2017.
Alaasar, M., S. Poppe, and C. Tschierske, "Cybotactic nematic phases of photoisomerisable hockey-stick liquid crystals", Liquid Crystals, vol. 44, pp. 729-737, 2017.
Alaasar, M., M. Prehm, S. Poppe, and C. Tschierske, "Development of Polar Order by Liquid‐Crystal Self‐Assembly of Weakly Bent Molecules", Chemistry-A European Journal, vol. 23, pp. 5541-5556, 2017.
Alaasar, M., N. Sebastián, S. Belau, A. Eremin, M. Prehm, and C. Tschierske, "Emergence of polar order and tilt in terephthalate based bent-core liquid crystals", Physical Chemistry Chemical Physics, vol. 19, pp. 5895-5905, 2017.
Alaasar, M., S. Poppe, Q. Dong, F. Liu, and C. Tschierske, "Isothermal Chirality Switching in Liquid-Crystalline Azobenzene Compounds with Non-Polarized Light", Angewandte Chemie International Edition, vol. 56, pp. 10801-10805, 2017.
Alaasar, M., and C. Tschierske, "Non-symmetric ether-linked liquid crystalline dimers with a highly polar end group", Liquid Crystals, vol. 44, pp. 387-393, 2017.
Alaasar, M., M. Kohout, A. Poryvai, V. Novotna, S. Poppe, C. Tschierske, and J. Svoboda, "Photosensitive bent-core liquid crystals based on methyl substituted 3-hydroxybenzoic acid", RSC Advances, vol. 7, pp. 35805-35813, 2017.
2019
Vij, J. K., Y. P. Panarin, S. P. Sreenilayam, M. Alaasar, and C. Tschierske, "Investigation of the heliconical smectic SmCSPFhel phase in achiral bent-​core mesogens derived from 4-​cyanoresorcin", Physical Review Materials, vol. 3, issue 4, pp. 045603, 2019.
Westphal, E., H. Gallardo, N. Sebastian, A. Eremin, M. Prehm, M. Alaasar, and C. Tschierske, "Liquid crystalline self-​assembly of 2,​5-​diphenyl-​1,​3,​4-​oxadiazole based bent-​core molecules and the influence of carbosilane end-​groups", Journal of Materials Chemistry C, vol. 7, issue 10, pp. 3064-3081, 2019.
Alaasar, M., and C. Tschierske, "Nematic phases driven by hydrogen-​bonding in liquid crystalline nonsymmetric dimers", Liquid Crystals, vol. 46, issue 1, pp. 124-130, 2019.
Alaasar, M., S. Poppe, and C. Tschierske, "Photoresponsive halogen bonded polycatenar liquid crystals", Journal of Molecular Liquids, vol. 277, pp. 233-240, 2019.
Alaasar, M., M. Prehm, S. Belau, N. Sebastian, M. Kurachkina, A. Eremin, C. Chen, F. Liu, and C. Tschierske, "Polar Order, Mirror Symmetry Breaking, and Photoswitching of Chirality and Polarity in Functional Bent-​Core Mesogens", Chemistry - A European Journal, vol. 25, issue 25, pp. 6362-6377, 2019.
Ahmed, H. A., M. Hagar, M. Alaasar, and M. Naoum, "Wide nematic phases induced by hydrogen-​bonding", Liquid Crystals, vol. 46, issue 4, pp. 550-559, 2019.
2020
Srinatha, M. K., S. Poppe, G. Shanker, M. Alaasar, and C. Tschierske, "2, 3, 4-Trihydroxy benzonitrile-based liquid crystals: Fiber forming room temperature nematic phases", Journal of Molecular Liquids, vol. 317, pp. 114244, 2020.
Alaasar, M., J. C. Schmidt, A. F. Darweesh, and C. Tschierske, "Azobenzene-based supramolecular liquid crystals: The role of core fluorination", Journal of Molecular Liquids, vol. 310, pp. 113252, 2020.
Poppe, M., M. Alaasar, A. Lehmann, S. Poppe, M. G. Tamba, M. Kurachkina, A. Eremin, M. Nagaraj, J. K. Vij, X. Cai, et al., "Controlling the formation of heliconical smectic phases by molecular design of achiral bent-core molecules", Journal of Materials Chemistry C, vol. 8, issue 10, pp. 3316-3336, 2020.
Alaasar, M., and S. Poppe, "Cybotactic nematic phases with wide ranges in photoresponsive polycatenars", Liquid Crystals, vol. 47, pp. 939-949, 2020.