Towards room temperature biaxial nematics

Molecular Crystals and Liquid Crystals

Volumn 511, Issue , 2009, Pages 203/[1673]-217/[1687]

  Cooper, Lori L ^a   Samulski, Edward T ^a   Scharrer, Eric ^a  

^a The University of North Carolina at Chapel Hill   (United States)

Author keywords

Biaxial nematic phase; Lateral methylation; Oxadiazole containing liquid crystals

Indexed keywords

ALKYLATION;

BIAXIAL NEMATIC PHASE; CLEARING TEMPERATURE; LIQUID CRYSTALLINE COMPOUNDS; LOW TEMPERATURES; MESOPHASE FORMATION; ONSET TEMPERATURE; OXADIAZOLES; UNMETHYLATED COMPOUNDS;

NEMATIC LIQUID CRYSTALS;

EID: 76149133668     PISSN: 15421406     EISSN: 15635287     Source Type: Journal    
DOI: 10.1080/15421400903053826     Document Type: Article

References (24)

1. Freiser, M. J. (1970). Phys. Rev. Lett., 24, 1041.
2. (a) Hughes, J. R., Kothe, G., Luckhurst, G. R., Malthete, J., Neubert, M. E., Shenouda, I., Timimi, B. A., & Tittlebach, M. (1997). J. Chem. Phys., 107, 9252-9263
3. (b) Galerne, Y. (1998). Mol. Cryst. Liq. Cryst., 311, 211-229.
4. (a) Leube, H. F. & Finkelmann, H. (1990). Makromol. Chem., 191, 2707-2715
5. (b) Severing, K. & Saalwachter, K. (2004). Phys. Rev. Lett., 92, 124501/1-124501/4.
6. (a) Madsen, L. A., Dingemans, T. J., Nakata, M., & Samulski, E. T. (2004). Phys. Rev. Lett., 92, 14505/1-14505/4
7. (b) Acharya, B. R., Primak, A., & Kumar, S. (2004). Phys. Rev. Lett., 92, 14506/1-14506/4.
8. Lee, J.-H., Lim, T.-K., Kim, W.-T., & Jin, J.-L. (2007). J. Appl. Phys., 101, 034105-1-034105-34109
9. (a) Yelamaggad, C. V., Prasad, S. K., Nair, G. G., Shashikala, I. S., Rao, D. S. S., Lobo, C. V., & Chandrasekhar, S. (2004). Angew. Chem. Int. Ed., 43, 3429-3432
10. (b) Figueirinhas, J. L., Cruz, C., Filip, D., Feio, G., Ribeiro, A. C., Frere, Y., Meyer, T. & Mehl, G. H. (2005). Phys. Rev. Lett., 94, 107802-1-107802-4
11. (c) Gortz, V., & Goodby, J. W. (2005). Chem. Commun., 3262-3264
12. (d) Prasad, V., Kang, S.-W., Suresh, K. A., Joshi, L., Wang, Q., & Kumar, S. (2005). J. Am. Chem. Soc., 127, 17224-17227
13. (e) Kang, S., Saito, Y., Watanabe, N., Tokita, M., Takanishi, Y., Takezoe, H., & Watanabe, J. (2006). J. Phys. Chem. B, 110, 5205-5214
14. (f) Apreutesei, D. & Mehl, G. H. (2007). J. Mater. Chem., 17, 4711-4715
15. (g) Martin, P. J. & Bruce, D. W. (2007). Liq. Cryst., 34, 767-774
16. (h) Dingemans, T. J., Madsen, L. A., Zafiropoulos, N. A., Lin, W., & Samulski, E. T. (2006). Phil. Trans. R. Soc. A, 364, 2681-2696
17. (i) Lehmann, M., Kang, S.-W., Kohn, C., Haseloh, S., Kolb, U., Schollmeyer, D., Wang, Q. B., & Kumar, S. (2006). J. Mater. Chem., 16, 4326-4334.
18. Demus, D. (1998). Chemical structure and mesogenic properties. In: Handbook of Liquid Crystals, Fundamentals, Demus, D., Goodby, J., Gray, G. W., Speiss, H.-W., & Vill, V. (Eds.), Wiley, VCH: Weinheim, Vol.1, Chap. VI, 151-153.
19. Dingemans, T. J., Murthy, N. S., & Samulski, E. T. (2001). J. Phys. Chem. B, 105, 8845-8860.
20. Note: the optical purity of the parent (S)-2-butoxybenzoic acid was not tested as the target compound was not liquid crystalline. The assignment of the configuration is based on the fact that it was prepared using the Mitsunobu reaction between ethyl 4-hydroxybenzoate and (R) 2-butanol and the Mitsunobu reaction is known to occur with inversion of configuration. Mitsunobu, O. (1981). Synthesis, 1, 1-28.
21. (a) Kaspar, M., Hamplova, V., Pakhomov, S. A., Stibor, I., Sverenyak, H., Bubnov, A. M., Glogarova, M., & Vanek, P. (1997). Liq. Cryst., 22, 557-561
22. (b) Prajapati, A. K. (2000). Liq. Cryst., 27, 1017-1020.
23. Hino, K., Maeda, K., & Okamoto, Y. (2000). J. Phys. Org. Chem., 13, 361-367.
24. Pierce, J. S., Salsbury, J. M., & Fredericksen, J. M. (1942). J. Am. Chem. Soc., 64, 1691-1694.