P. Barois and S. Sarmento, Mol. Cryst. Liq. Cryst., 1999, 328,
177.
J. P. Bedel, J. C. Rouillon, J. P. Marcerou, M. Laguerre,
M. F. Achard and H. T. Nguyen, Liq. Cryst., 2000, 27, 103.
G. Pelzl, S. Diele, A. Jakli, C. Lischka, I. Wirth and W. Weissflog,
Liq. Cryst., 1999, 26, 135.
J. P. Bedel, J. C. Rouillon, J. P. Marcerou, M. Laguerre,
H. T. Nguyen and M. F. Achard, Liq. Cryst., 2000, 27, 1411.
B. K. Sadashiva, V. A. Raghunathan and R. Pratibha, Ferro-
electrics, 2000, 243, 24.
CDCl3) d (ppm): 0.85–0.9 (m, 6H ,m, CH3), 1.3 (m, 44H,
22CH2), 1.8 (m, 4H, 2 O-CH2-CH2), 4.05 (t, 4H, 2 O-CH2),
6.65–6.8 (m, 4H, Ar-H), 7.25–7.35 (m, 8H, Ar-H), 7.6 (t, 1H,
Ar-H), 8.1 (m, 4H, Ar-H), 8.4 (s, 1H, Ar-H), 8.6 (s, 2H,
CHLN).
Elemental analysis: calculated: C: 75.61%; H: 7.93%; N:
2.84%; F: 3.86%. Found: C: 75.38 %; H: 7.98 %; N: 2.89 %;
F: 3.59 %.
5
6
7
8
9
A. Maranatha and B. K. Sadashiva, Liq. Cryst., 2000, 27, 1613.
1,3-Bis[4-(3-fluoro-4-tetradecyloxybenzoyloxy)phenylimino-
D
14F3). 1H NMR (200 MHz,
10 J. C. Rouillon, J. P. Marcerou, M. Laguerre, H. T. Nguyen and
M. F. Achard, J. Mater. Chem, 2001, 11, 2946.
11 W. Weissflog, I. Wirth, S. Diele, G. Pelzl and H. Schmalfuss, Liq.
Cryst., 2001, 28, 1603.
12 G. Pelzl, S. Diele, S. Grande, A. Jakli, C. Lischka, H. Kresse,
H. Schmalfuss, I. Wirth and W. Weissflog, Liq. Cryst., 1999, 26,
401.
13 H. Dehne, M. Po¨tter, S. Sokolowski, W. Weissflog, S. Diele,
G. Pelzl, I. Wirth, H. Kresse and S. Grande, Liq. Cryst., 2001, 28,
1269.
methyl]benzene (compound
CDCl3) d (ppm): 0.85–0.9 (m, 6H, 2CH3), 1.25–1.5 (m, 44H,
22CH2), 1.8 (m, 4H, 2 O-CH2-CH2), 4.1 (t, 4H, 2 O-CH2), 7.1
(t, 2H, Ar-H), 7.22–7.34 (m, 8H, Ar-H), 7.6 (t, 1H, Ar-H),
7.88–8.05 (m, 6H, Ar-H), 8.4 (s, 1H, Ar-H), 8.6 (s, 2H, CHLN).
Elemental analysis: calculated: C: 75.61%; H: 7.93%; N:
2.84%; F: 3.8 %. Found: C: 75.84%; H: 7.98%; N: 2.93%;
F: 3.68%.
14 W. Weissflog, L. Kovalenko, I. Wirth, S. Diele, G. Pelzl,
H. Schmalfuss and H. Kresse, Liq. Cryst., 2000, 27, 677.
15 S. Diele, H. Grande, H. Kruth, C. Lischka, G. Pelzl, W. Weissflog
and I. Wirth, Ferroelectrics, 1998, 212, 169.
16 G. Pelzl, S. Diele, A. Jakli, C. Lischka, I. Wirth and W. Weissflog,
Liq. Cryst., 1999, 26, 135.
17 B. K. Sadashiva, H. N. Shreenivasa Murthy and Surajit Dhara,
Liq. Cryst., 2001, 28, 183.
18 R. Amaranatha Reddy, B. K. Sadashiva and Surajit Dhara, Chem.
Commun., 2001, 1972.
1,3-Bis[4-(2,3-difluoro-4-tetradecyloxybenzoyloxy)phenylimi-
nomethyl]benzene (compound D14F2,3.
1H NMR (200 MHz,
CDCl3) d (ppm): 0.85–0.9 (m, 6H, 2CH3), 1.25–1.5 (m, 44H,
22CH2), 1.8 (m, 4H, 2 O-CH2-CH2), 4.15 (t, 4H, 2 O-CH2),
6.85 (m, 2H, Ar-H), 7.3 (m, 8H, Ar-H), 7.6 (t, 1H, Ar-H), 7.85
(m, 2H, Ar-H), 8.05 (d, 2H, Ar-H), 8.4 (s, 1H, Ar-H), 8.6 (s, 2H,
CHLN).
19 G. Heppke, D. D. Parghi and H. Sawade, Ferroelectrics, 2000, 243,
269.
References
20 C. K. Lee and L. C. Chien, Ferroelectrics, 2000, 243, 231.
21 W. Weissflog, H. Nadasi, U. Dunemann, G. Pelzl, S. Diele,
A. Aremin and H. Kresse, J. Mater. Chem., 2001, 11, 2748.
22 J. P. Bedel, J. C. Rouillon, J. P. Marcerou, M. Laguerre,
H. T. Nguyen and M. F. Achard, submitted.
23 H. T. Nguyen, A. Babeau, J. C. Rouillon, G. Sigaud, N. Isaert and
F. Bougrioua, Ferroelectrics, 1996, 79, 33.
24 M. F. Nabor, H. T. Nguyen, C. Destrade, J. P. Marcerou and
J. Twieg, Liq. Cryst., 1991, 10, 785.
25 S. M. Kelly, Helv. Chim. Acta, 1989, 72, 594.
1
2
3
4
T. Niori, T. Sekine, J. Watanabe, T. Furukawa and H. Takezoe,
J. Mater. Chem., 1996, 6, 1231.
See for example: G. Pelzl, S. Diele and W. Weissflog, Adv. Mater.,
1998, 11, 707 and references therein.
J. P. Bedel, J. C. Rouillon, J. P. Marcerou, M. Laguerre,
H. T. Nguyen and M. F. Achard, Liq. Cryst., 2001, 28, 1285.
H. T. Nguyen, J. C. Rouillon, J. P. Marcerou and P. Barois,
International Conference On Liquid Crystals, Strasbourg, 1999
(D2-O3); H. T. Nguyen, J. C. Rouillon, J. P. Marcerou, J. P. Bedel,
2220
J. Mater. Chem., 2002, 12, 2214–2220