Prof. Dr. M. Lehmann

Contact

Prof. Dr. Matthias Lehmann

Institute of Organic Chemistry
University of Würzburg
Am Hubland
97074 Würzburg / Germany

room: 01.026
phone: +49 931 31 83708
fax: +49 931 31 87350
matthias.lehmann@uni-wuerzburg.de

Student advice & counselling

for Bachelor students as well as BAFÖG affairs please contact Prof. Dr. Roland Mitric

Fachstudienberater (Bachelor)

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We welcome any request of students to start their Bachelor Thesis, Master Thesis or Internships (Organic Chemistry, Homogeneous Catalysis or Funtional Materials) at this familiar working group.

Key Research Interests

Our research aims to develop novel liquid crystalline (LC) materials consisting of compounds with non-conventional shapes such as stars, V- or board-shaped molecules. The star topology is generated by symmetric attachment of three to six arms to a core unit. We achieve control of self-assembly in LC materials by varying the core, the arm scaffold and the peripheral chains. A detailed understanding of the stacking procedures in the solid-state through nanosegregation and space-filling allows the incorporation and positioning of functional building blocks. This converts the compounds on complex functional LC materials, which can be applied in organic electronics. Board- and V-shaped mesogens are investigated with respect to the formation of the highly elusive biaxial nematic mesophase. Biaxial nematogens are proposed as new materials for the future fast-switching LC-displays.

Recent Publications

New ionic mesogens with high ionic conductivity based on a cyanoborate building block and lipophilic or hydrophilic counter ions, M. Lehmann, P. Weinberger, M. Finze, G. A. Giffin, M. Weller, S. Bachmann, A.-C. Pöppler, J. Mater. Chem. C 2024, 12, 7233-7239.

DOI: 10.1039/D4TC01045K

Discotic Star Mesogen with Thymine Nucleobases Exhibiting a Rare Gyroid Cubic Mesophase with 3D Conductivity, K. Noll, M. Lambov, D. P. Singh, M. Lehmann, Chem. Eur. J. 2023, 30, e2023033.

DOI: 10.1002/chem.202303375

A Photomechanical Film in which Liquid Crystal Design Shifts the Absorption into the Visible Light Range, S. Schultzke, N. Scheuring, P. Puylaert, M. Lehmann, A. Staubitz, Front. Adv. Sci. 2023, 10, 2302692.

DOI: 10.1002/advs.202302692

The complete list of publications is available in the Publications section.