Stabilization and induction of discotic mesophases by trifluoroacetic acid

Liquid Crystals

Volumn 22, Issue 5, 1997, Pages 621-630

  Calucci, L ^a   Zimmermann, H ^b   Wachtel, E J ^c   Poupko, R ^c   Luz, Z ^c  

^a UNIVERSITY OF PISA   (Italy)

^b MAX PLANCK INSTITUTE FOR MEDICAL RESEARCH   (Germany)

^c WEIZMANN INSTITUTE OF SCIENCE   (Israel)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000049372     PISSN: 02678292     EISSN: 13665855     Source Type: Journal    
DOI: 10.1080/026782997209036     Document Type: Article

References (29)

1. RINGSDORF, HWÜSTERFELD, RZERTA, E., Ebert, M., and Wendorff, J. H., 1989, Angew. Chem. Ed. Engl., 28, 914.
2. Bengs, H., Ebert, M., Karthous, O., Kohne, B., Praefoke, K., Ringsdorff, H., Wendorff, J. H., and WUsterfeld, R., 1990, Adv. Mater., 2, 141.
3. Praefoke, K., and Singer, D., 1994, Mol. Mater., 3, 265.
4. Zamir, S., Singer, D., Spielberg, N., Waohtel, E. J., Zimmermann, H., Poupko, R., and Luz, Z., 1996, Liq. Cryst, 21, 39.
5. Chiang, L. Y., Stokes, J. P., Safinya, C. R., and Bloch, A. N., 1985, Mol. Cryst. liq. Cryst., 125, 279.
6. Boden, N., BusHBy, R. J., Clements, J., Jesudason, M. V., Knowles, P. F., and Williams, G., 1988, Chem. Phys. Lett, 152, 94.
7. Boden, N., Borner, R., Brown, D. R., BusHBy, R. J., and Clements, J., 1992, Liq. Cryst., 11, 32.
8. Boden, N., BusHBy, R. J., Clements, J., Movaghar, B., Donovan, K. J., and Kreouzis, T., 1995, Phys. Rev., B52, 13274.
9. Kelker, H., and Hatz, R., 1980, Handbook of Liquid Crystals Weinheim: Verlag Chemie Chap. 11.
10. Billard, J., and Sadashiva, B. K., 1979, Pramana, 13, 309.
11. Chandrasekhar, S., Sadashiva, B. K., Suresh, K. A., Madhusudana, N. V., Kumar, S., Shashidhar, R., and Vankatesh, G., 1979, J. Physique Colloq., 40, C3-120.
12. Usol’tseva, N., Praefoke, K., Singer, D., and GUnoldogan, B., 1994, Mol. Mater., 4, 253.
13. Calucci, L., Zamir, S., Singer, D., Zimmermann, H., Waohtel, E. J., Poupko, R., and Luz, Z., 1997, Liq. Cryst, 22, 1.
14. Destrade, C., Mondon, M. C., and Malthete, J., 1979, J. Physique Colloq., 40, C3-17.
15. Levelut, A.-M., 1979, J. Physique Lett., 40, L-781.
16. Levelut, A.-M., 1983, J. Chim. Physique, 80, 149.
17. Goldfarb, D., Luz, Z., and Zimmermann, H., 1981, J. Physique, 1303;
18. 1983, J. chem. Phys., 78, 7065.
19. Zimmermann, H., Poupko, R., Luz, Z., and Billard, J., 1985, Z. Naturforsch., 40a, 149.
20. Malthete, J., and Collet, A., 1985, Nouv. J. Chimie, 9, 151.
21. Levelut, A.-M., Malthete, J., and Collet, A., 1986, J. Physique, 47, 357.
22. Zimmermann, H., Poupko, R., Luz, Z., and Billard, J., 1986, Z. Naturforsch., 41a, 1137.
23. Poupko, R., Luz, Z., Spielberg, N., and Zimmermann, H., 1989, J. Am. chem. Soc., 111, 6094.
24. Zamir, S., Luz, Z., Poupko, R., Alexander, S., and Zimmermann, H., 1991, J. chem. Phys., 94, 5927.
25. Zimmermann, H., 1989, Liq. Cryst., 4, 591.
26. In references [14-17] THE3 is classified as non- mesogenic. However miscibility tests on the lower homo¬logues of the triphenylene series show that the high temperature phases of THE3 and THE4 are completely miscible as are the high temperature Colho phases of THE4 and THE5. Thus, although under the microscope THE3 appears crystalline, based on the miscibility tests it must be considered mesogenic (D. Singer, S. Zamir, E. J. Wachtel, H. Zimmermann, R. Poupko and Z. Luz, to be published).
27. Goldfarb, D., Dong, R. Y., Luz, Z., and Zimmermann, H., Mol. Phys., 54, 1185.
28. Torchia, D. A., and Szabo, A., 1982, J. magn. Reson., 49, 107.
29. Hauptschein, M., and Grone, A. V., 1951, J. Am. chem. Soc, 73, 5139