Charge carrier transport in perylene-based and pyrene-based columnar liquid crystals

• Alessandro L. Alves,
• Simone V. Bernardino,
• Carlos H. Stadtlober,
• Edivandro Girotto,
• Giliandro Farias,
• Rodney M. do Nascimento,
• Sergio F. Curcio,
• Thiago Cazati,
• Marta E. R. Dotto,
• Juliana Eccher,
• Leonardo N. Furini,
• Hugo Gallardo,
• Harald Bock and
• Ivan H. Bechtold

Beilstein J. Org. Chem. 2023, 19, 1755–1765, doi:10.3762/bjoc.19.128

• understanding charge transport in columnar mesophases [9][10][11][12][13][14]. High charge carrier mobilities of 1.1 cm2 V−1 s−1 for p-type and up to 6.0 cm2 V−1 s−1 for n-type liquid-crystalline semiconductors have already been reported [15]. Among the various discotic liquid crystal materials, perylene

Triphenylene discotic liquid crystal trimers synthesized by Co₂(CO)₈-catalyzed terminal alkyne [2 + 2 + 2] cycloaddition

• Bin Han,
• Ping Hu,
• Bi-Qin Wang,
• Carl Redshaw and
• Ke-Qing Zhao

Beilstein J. Org. Chem. 2013, 9, 2852–2861, doi:10.3762/bjoc.9.321

• Bin Han Ping Hu Bi-Qin Wang Carl Redshaw Ke-Qing Zhao College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China Department of Chemistry, University of Hull, Hull, HU6 7RX, UK 10.3762/bjoc.9.321 Abstract The synthesis of star-shaped discotic liquid crystal

• mesomorphism. Keywords: Co2(CO)8 catalyzed cycloaddition; columnar mesophase; discotic liquid crystal; triphenylene; oligomer; Introduction Discotic liquid crystals (DLCs) with nematic phase have been commercially utilized in the liquid crystal display industry as optical compensating films for widening the

Synthesis of oleophilic electron-rich phenylhydrazines

• Aleksandra Jankowiak and
• Piotr Kaszyński

Beilstein J. Org. Chem. 2012, 8, 275–282, doi:10.3762/bjoc.8.29

• preparation of a discotic liquid crystal. Results and Discussion Our initial attempts at the preparation of 3,4-dioctyloxyphenylhydrazine (1a) focused on deprotection of the trichloroethyl ester 3a under buffered reductive conditions, according to the general literature procedure [24]. In aqueous MeOH

Self-assembled ordered structures in thin films of HAT5 discotic liquid crystal

• Piero Morales,
• Jan Lagerwall,
• Paolo Vacca,
• Sabine Laschat and
• Giusy Scalia

Beilstein J. Org. Chem. 2010, 6, No. 51, doi:10.3762/bjoc.6.51

• . R. Portici, P.le E. Fermi, I-80055 Portici (Naples) Italy Institute of Organic Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany 10.3762/bjoc.6.51 Abstract Thin films of the discotic liquid crystal hexapentyloxytriphenylene (HAT5), prepared from solution via casting

• of the results obtained for cast and spin-coated samples, in comparison with bulk samples, is provided in Table 1. Conclusion The discotic liquid crystal HAT5 showed the tendency to form fiber-like structures in films prepared from solution using different methods. In the thicker samples prepared by