English Intern
    THE LEHMANN GROUP: ORGANIC SOFT MATERIALS AND LIQUID CRYSTALS

    2017

    • "Free Space in Liquid Crystals – Generation, Design and Application",

     3rd Asian Conference on Liquid Crystals (ACLC2017),

     Tainan (Taiwan), 14.02.2017.

    • "Free Space in Liquid Crystals – Generation, Design and Application",

    Invited Talk at the Japan Society for the Promotion of Science (JSPS) Meeting,

    Tokyo, 17.02.2017.

    • "Generation of Void with Shape-Persistent Mesogens – Benefit or Malediction for the Formation of Liquid Crystals?",

    Invited Talk at the Ryukoku University,

    Seta (Japan), 20.02.2017.

    • "Free Space in Liquid Crystals – Generation, Design and Application",

    Invited Talk at the University of Osaka,

    Osaka, 21.02.2017.

    • "Donor/Acceptor Porphyrin-TTF/Oligothiophene Star Dyad: Potential Photovoltaic Materials",

    Dr. Tapas Ghosh, 2nd German-British Liquid Crystal Conference,

    Würzburg (Germany), 04.04. 2017.

    • "Free Space in Liquid Crystals – Generation, Design and Application",

    European Conference on Liquid Crystals (ECLC2017),

    Moskau (Russia), 26.06.2017.

    2016

    • "First Generation Shape-Persistent Stilbenoid LC-Dendrimers - A Game with Free Space",

    Plenary Speaker at the V Encuentro sobre Dendrimeros (EDEN 2016),

    Zaragoza (Spain), 25.01.2016.

    • "New Shape-Amphiphiles Self-Assembling in Filled Columnar Mesophases",

    Markus Hügel, 1st Joint Conference of the British and German Liquid Crystal Societies,

    Edinburgh (Great Britain), 23.03.2016.

    • "Filled Functional Liquid Crystals - Star-Shaped Stilbenoid Hosts With Nanosegregated Guests",

    International Liquid Crystal Conference (ILCC 2016),

    Kent (USA), June 2014.

    • "Functional Liquid-Crystalline Hybrid Materials - from Supermesogens to Fulleren Triple Helices",

    Invited Talk, Universität Duisburg-Essen,

    24.11.2016.

    2015

    • "Liquid Crystal Endo-Receptors Forming Supermesogens With Three Guests,

    Philip Maier, 42. Arbeitstagung Flüssigkristalle,

    Stuttgart (Germany), 06.03.2015.

    • "Functional liquid crystalline hybrid materials – from hydrogen bonded Supermesogens to Fullerene triple helices",

    Invited Speaker at the Universidad de Chile,

    Santiago de Chile (Chile), 12.08.2015.

    • "New Design Principle for the preparation of complex, functional liquid crystalline hybrid materials",

    European Conference on Liquid Crystals (ECLC 2015),

    Manchester (Great Britain), 08.09.2015.

    • "Functional liquid-crystalline hybrid materials with star-shaped oligophenylenevinylene mesogens",

    COPO (Würzburg 2015),

    30.09.2015.

    2014

    • "Shape-persistent, Star-Shaped Host-Guest Supermesogens",

    41. Arbeitstagung Flüssigkristalle,

    Magdeburg (Germany), 27.03.2014.

    • "Shape-persistent, Star-Shaped Host-Guest Supermesogens",

    International Liquid Crystal Conference (ILCC 2014),

    Dublin (Ireland), June 2014.

    2013

    • "Folding as a General Principle for the Mesophase Formation of Semiflexible Star-Shaped Mesogens",

    Steffi Gloza, 40. Topical Meeting on Liquid Crystals,

    Paderborn (Germany), 2013.

    • "The Control of Folding in Semiflexible Star-Shaped Mesogens",

    European Conference on Liquid Crystals (ECLC 2013),

    Rhodes (Greece) 26.09.2013.

    • "Folding to Unexpected Conformers - a General Principle for the Self-Assembly of Nonconventional Star-Shaped Mesogens",

    Invited Lecture at the Wissenschaftsforum 2013,

    Darmstadt (Germany), 02.09.2013.

    2012

    • "Nonconventional Star-shaped Mesogens: Influence and Importance of Folding and Space-Filling for Functional Materials",

    International Liquid Crystal Conference (ILCC2012) and 39. Topical Meeting on Liquid Crystals,

    Mainz (Germany), 24.08.2012.

    2011

    • "Hekates - from the formation of LC-neno-structures and functional, multichromophore star mesogens",

    M. Lehmann, 39. Arbeitstagung Flüssigkristalle,

    Hamburg, March 31, 2011.

    2010

    • "Mesomorphe Sternoligomere kombiniert mit Chromophoren - Auf dem Weg zu weichen, hochorganisierten Hybridmaterialien",

    M. Lehmann,

    Kassel, October 18, 2010.

    • "Rationales Design von Komplexen Funktionsmaterialien. Synthese und Selbstorganisation in Nanostrukturen",

    M. Lehmann,

    Paderborn, July 22, 2010.

    • "Shape-persistent, V-shaped nematogens: Molecular design and nature of their nematic phases - does the ideal angle for stable biaxial nematics exist?",

    Invited Speaker at the International Liquid Crystal Conference,

    Krakau (Polen), July 2010.

    2009

    • "Rational design of complex functional materials: Synthesis and self-organisation in nanostructures",

    M. Lehmann, M. Jahr, S. Gloza, European Liquid Crystal Conference ELCC (19.-24. April 2009),

    Colmar (France), 2009.

    • "Rationales Design von komplexen Funktionsmaterialien: Synthese und Selbstorganisation in Nanostrukturen",

    M. Lehmann, M. Jahr, S. Gloza, Chemiedozententagung (March 08-11, 2009),

    Göttingen (Germany), 2009.

    • "Funktionale nichtkonventionelle Flüssigkristalle - rationales Design von neuen selbstorganisierenden, weichen Materialien",

    M. Lehmann,

    Koblenz, May 13, 2009.

    2008

    • "Functional mesogens forming highly ordered helical mesophases",

    M. Lehmann, M. Jahr, F. C. Grozema, R. D. Abellon, L. D. A. Siebbeles, M. Müller, 22nd International Liquid Crystal Conference (June 29 - July 04, 2008),

    Jeju (South Korea), 2008; (Oral Presentation ORD_1010).

    • "Functional mesogens forming highly ordered helical mesophases",

    M. Lehmann, M. Jahr, F. C. Grozema, R. D. Abellon, L. D. A. Siebbeles, M. Müller, E-MRS 2008 Spring Meeting (May 26 - 30, 2008),

    Strasbourg (France), 2008; (Oral Presentation P-35).

    • "Design und Synthese von V-förmigen, formtreuen Nematogenen - Moleküle für die Selbstorganisation in thermotropen, biaxial nematischen Mesophasen",

    M. Lehmann, J. Seltmann, Ch. Köhn, S. Kumar, S.-W. Kang, Q. B. Wang, C. Cruz, J. Figueirinhas, G. Feio, Chemiedozententagung (March 30 - April 02, 2008),

    Kaiserslautern (Germany), 2008.

    • "Evidence of biaxial order in nematic phases in the series of V-shaped, shape persistent mesogens",

    M. Lehmann, Ch. Köhn, J. Seltmann, C. Cruz, J. Figueirinhas, G. Feio, 36. Arbeitstagung (March 12 - 14, 2008),

    Magdeburg (Germany), 2008.

    • "Biaxial nematic mesophases from shape persistent, v-shaped mesogens",

    Invited Speaker, Symposium on Biaxial Nematic Liquid Crystals,

    Kent State University, October 27 - 28, 2008.

    • "Functional mesogens forming highly ordered helical mesophases",

    M. Lehmann, M. Jahr, F. C. Grozema, R. D. Abellon, L. D. A. Siebbeles, M. Müller, Conference on Electronic Processes in p-Conjugated Molecules (October 07 - 10, 2008),

    Würzburg 2008.

    • "Functional mesogens forming highly ordered helical mesophases",

    M. Lehmann, M. Jahr, F. C. Grozema, R. D. Abellon, L. D. A. Siebbeles, M. Müller, 2nd European Chemistry Conference (September 16 - 20, 2008),

    Turin (Italien) 2008.

    2007

    • "Funktionale nichtkonventionelle Flüssigkristalle - Design und Synthese von neuen selbstorganisierenden, weichen Materialien",

    M. Lehmann,

    Stuttgart, November 05, 2007.

    • "Funktionale nichtkonventionelle Flüssigkristalle - Design und Synthese von neuen selbstorganisierenden, weichen Materialien",

    M. Lehmann,

    Stuttgart, September 21, 2007.

    • "Functional non-conventional liquid crystals - design and synthesis of new self-organising soft materials",

    M. Lehmann, Seminar about novel chemical-organic methods,

    Würzburg, July 09, 2007.

    • " Funktionale nichtkonventionelle Flüssigkristalle - Design und Synthese von neuen selbstorganisierenden, weichen Materialien",

    M. Lehmann,

    Karlsruhe, 25. Mai 2007.

    • " Funktionale nichtkonventionelle Flüssigkristalle - Design und Synthese von neuen selbstorganisierenden, weichen Materialien",

    M. Lehmann, Antrittsvorlesung (Juniorprofessur „Nichtklassische Synthesemethoden“),

    Chemnitz, April 12, 2007.

    • "Star-shaped mesogens containing chromophores: Synthesis and properties of functional liquid crystals",

    M. Jahr, M. Lehmann, F. Grozema, L. D. A. Siebbele, 9th European Conference on Liquid Crystals,

    Lissabon (Portugal), July 01 - 06, 2007.

    • " Star-shaped mesogens containing chromophores: Synthesis and properties of functional liquid crystals",

    M. Lehmann, M. Jahr, F. Grozema, L. D. A. Siebbeles, MC8: Advanced Materials by Chemical Design,

    London (United Kingdom), July 02 - 05, 2007.

    • "Undulated columnar liquid crystals from star-shaped mesogens",

    M. Lehmann, M. Jahr, F. Grozema, L. D. A. Siebbeles, 35. Arbeitstagung Flüssigkristalle (March 21 - 23, 2007),

    Bayreuth (Germany), 2007.

    • "Sternförmige Mesogene: Synthese und Eigenschaften von funktionalen Flüssigkristallen",

    M. Lehmann, M. Jahr, F. Grozema, L. D. A. Siebbeles, Chemiedozententagung (March 11 - 14, 2007),

    Halle (Germany), 2007.

    2006

    • "Control of supramolecular order in liquid crystals: from biaxial nematics to columnar and cubic films",

    M. Lehmann, Kent State University,

    Kent (USA), 11.07.2006.

    • "Star-shaped oligobenzoates: Programming supramolecular aggregation in liquid crystal phases",

    M. Lahmann, University of Pennsylvania,

    Philadelphia (USA), 30.06.2006.

    • "Star-shaped oligobenzoates: Programming supramolecular aggregation in liquid crystal phases",

    M. Lehmann, Vortrag im Rahmen des Graduiertenkollegs „Selbstorganisation durch koordinative und nichtkovalente Wechselwirkungen",

    Universität Halle, April 06, 2006.

    • "Shape-persistent bent mesogens - biaxial molecules forming biaxial nematic phases?",

    M. Lehmann, S.-W. Kang, Ch. Köhn, T. Gorelik, U. Kolb, D. Schollmeyer, S. Kumar, 21st International Liquid Crystal Conference,

    Keystone, Colorado (USA), July 2006.

    • " Star-shaped oligobenzoates: Programming supramolecular aggregation in liquid crystal phases",

    M. Lehmann, Chemiedozententagung,

    Hamburg (Germany), 2006.

    • "Shape-persistent, v-shaped mesogens - formation of nematic phases with biaxial order",

    M. Lehmann, S.-W. Kang, Ch. Köhn, T. Gorelik, U. Kolb, D. Schollmeyer, S. Kumar, 34th Arbeitstagung Flüssigkristalle,

    Freiburg (Germany), March 2006.

    • "Rigid V-shaped mesogens - formation of nematic phases with biaxial order",

    M. Lehmann, S.-W. Kang, Ch. Köhn, T. Gorelik, U. Kolb, D. Schollmeyer, S. Kumar, 2nd Southampton International Symposium on Biaxial Nematics,

    Southampton (UK), January 27, 2006.

    2005 to 2003

    • "Star-shaped mesogens: Synthetic control of liquid crystal self-assembly",

    M. Lehmann, Institut de Chimie et Interfaces Mulhouse,

    France, September 29, 2005.

    • "Star-shaped mesogens: Synthetic control of liquid crystal self-assembly",

    M. Lehmann, Universidad de Concepción,

    Concepción (Chile), August 2005.

    • "Star-shaped mesogens: Synthetic control of liquid crystal self-assembly",

    M. Lehmann, Université Libre de Bruxelles,

    Belgium, June 17, 2005.

    • "Supramolecular order of stilbenoid dendrons: Importance of weak interactions",

    M. Lehmann, H. Meier, S. Renker, A. Oehlhof, "International Conference on Research Trends in Science and Technology",

    Beirut (Libanon), 2005.

    • "Nematic LC phases from shape-persistent, v-shaped molecules with lateral alkoxy chains",

    M. Lehmann, J. Levin, "32. Arbeitstagung Flüssigkristalle",

    Halle (Germany), 2004.

    • "Star-shaped mesogens with a 1,3,5-benzene core as non-conventional columnar liquid crystals",

    M. Lehmann, R. I. Gearba, M. H. J. Koch, D. A. Ivanov, "7th European Conference on Liquid Crystals",

    Jaca (Spain), 2003.

    • "Star-shaped mesogens with a 1,3,5-benzene core as non-conventional columnar liquid crystals",

    M. Lehmann, R. I. Gearba, M. H. J. Koch, D. A. Ivanov, "31. Arbeitstagung Flüssigkristalle",

    Mainz (Germany), 2003.

    • "Hexaazatrinaphthalenes: Influence des differents groupes connecteures sur les transitions de phases",

    M. Lehmann, G. Kestemont, J. Tant, Y. Geerts, M. Watson, R. I. Gearba, D. A. Ivanov, "Journées Discotiques",

    Bruxelles (Belgium), 2003.

    • "Columnar liquid crystals formed by semi-flexible star-shaped oligobenzoates",

    M. Lehmann, R. I. Gearba, M. H. J. Koch , D. A. Ivanov, "Dendrimer Soft Self-Assembly Systems (DENSOM)",

    York (England), 2003.

    2002 to 1999

    • "Ways to new supramolecular structures: Influence of flexibility and persistence",

    M. Lehmann, J. Levin, R. I. Gearba, Arbeitsgruppenseminar Prof. H. Meier,

    Gernsbach (Germany), 2002.

    • "Synthesis and supramolecular properties of hexaaza-triphenylene derivatives as potential electron carriers",

    M. Lehmann, G. Kestemont, Y. Geerts, CRESMAP Conference,

    Mons (Belgium), 2002.

    • "Chiral polycatenar metallomesogens and their supramolecular organization in liquid crystals",

    M. Lehmann, T. Sierra, J. Babéra, J.L. Serrano, TMR Network Meeting: Molecular Design of Functional Liquid Crystals,

    Zaragoza (Spain), 2001.

    • " Synthesis and supramolecular properties of hexaaza-triphenylene derivatives as potential electron carriers",

    M. Lehmann, G. Kestemont, Y. Geerts, EURESCO Conferences, Chemistry and Physics of Multifunctional Materials Acquafredda di Maratea,

    Italia, 2001.

    • "Synthesis of novel mesogens for chiral and biaxial supra-molecular organization in liquid crystals",

    M. Lehmann, T. Sierra, J. Babéra, J.L. Serrano, TMR Network Meeting: Molecular Design of Functional Liquid Crystals,

    Southampton (England), 2000.

    • "Synthesis of novel mesogens for chiral and biaxial supra-molecular organization in liquid crystals",

    M. Lehmann, T. Sierra, J. Babéra, J.L. Serrano, TMR Network Meeting: Molecular Design of Functional Liquid Crystals,

    Freiburg (Germany), 1999.

    Kontakt

    Professur für Organische Materialien am Institut für Organische Chemie
    Am Hubland
    97074 Würzburg

    Suche Ansprechpartner

    Hubland Süd, Geb. C1