2,4-Bis[4-(N,N-dibutylamino)phenyl]squaraine: X-ray crystal structure of a centrosymmetric dye and the second-order non-linear optical properties of its non-centrosymmetric Langmuir-Blodgett films

Journal of Materials Chemistry

Volumn 6, Issue 1, 1996, Pages 23-26

  Ashwell, Geoffrey J ^a   Bahra, Gurmit S ^b   Brown, Christopher R ^b   Hamilton, Darren G ^a   Kennard, Colin H L ^c   Lynch, Daniel E ^a  

^a CRANFIELD UNIVERSITY   (United Kingdom)

^b DEFENCE SCIENCE AND TECHNOLOGY LABORATORY   (United Kingdom)

^c UNIVERSITY OF QUEENSLAND   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001844082     PISSN: 09599428     EISSN: None     Source Type: Journal    
DOI: 10.1039/JM9960600023     Document Type: Article

References (29)

1. Nonlinear Optical Properties of Organic Molecules and Crystals, eds. D. S. Chemla and J. Zyss, Academic Press, Orlando, 1987.
2. S. Allen, in Molecular Electronics, ed. G. J. Ashwell, Wiley, Research Studies Press, Taunton, 1992, pp. 207-265.
3. R. G. Denning, in Spectroscopy of New Materials, ed. R. J. H. Clark and R. E. Hester, Wiley, 1993, pp. 1-60.
4. Principles and Applications of Nonlinear Optical Materials, ed. R. W. Munn and C. N. Ironside, Blackie A&P, Chapman and Hall, Glasgow, 1993.
5. Organic Materials for Nonlinear Optics III, ed. G. J. Ashwell and D. Bloor, Royal Society of Chemistry Press, Cambridge, 1993.
6. G. J. Ashwell, E. J. C. Dawnay, A. P. Kuczynski, M. Szablewski, I. M. Sandy, M. R. Bryce, A. M. Grainger and M. Hasan, J. Chem. Soc., Faraday Trans., 1990, 86, 1117;
7. G. J. Ashwell, G. Jefferies, E. J. C. Dawnay, D. E. Lynch, A. P. Kuczynski, G. Yu and D. G. Bucknall, J. Mater. Chem., 1995, 5, 975.
8. G. J. Ashwell, P. D. Jackson and W. A. Crossland, Nature (London), 1994, 368, 438;
9. G. J. Ashwell, G. Yu, D. Lochun and P. D. Jackson, Polym. Prepr., 1994, 35, 185.
10. Q. L. Zhou, R. F. Shi, O. Zamani-Khamari and A. F. Garito, Nonlinear Optics, 1993, 6, 145.
11. J. H. Andrews, J. D. V. Khaydarov and K. D. Singer, Polym. Prepr., 1994, 35, 112.
12. C. W. Dirk, W. C. Herndon, F. Cervantes-Lee, H. Selnau, S. Martinez, P. Kalamegham, A. Tan, G. Campos, M. Velez, J. Zyss, I. Ledoux and L-T. Cheng, J. Am. Chem. Soc., 1995, 117, 2214.
13. G. J. Ashwell, G. Jefferies, D. G. Hamilton, D. E. Lynch, M. P. S. Roberts, G. S. Bahra and C. R. Brown, Nature (London), 1995, 375, 385.
14. J. L. Brédas and F. Meyers, Nature (London), 1995, 375, 362.
15. G. J. Ashwell, T. Handa and D. G. Hamilton, to be published.
16. K-Y. Law and F. C. Bailey, J. Org. Chem., 1992, 57, 3278.
17. H. E. Sprenger and W. Zeigenbein, Angew. Chem., Int. Ed. Engl., 1967, 6, 553.
18. J. Bernstein and E. Goldstein, Mol. Cryst. Liq. Cryst., 1988, 164, 213.
19. G. M. Sheldrick, SHELXS-86, Structure Solution Package, University of Göttingen, 1986.
20. G. M. Sheldrick, SHELXL-93, Program for Crystal Structure Determination, University of Göttingen, 1993.
21. G. J. Ashwell, P. D. Jackson, D. Lochun, P. A. Thompson, W. A. Crossland, G. S. Bahra, C. R. Brown and C. Jasper, Proc. R. Soc. London, ser. A, 1994, 445, 385.
22. E. Buncel, A. McKerrow and P. M. Kazmaier, J. Chem. Soc., Chem. Commun., 1992, 1242.
23. S. Das, K. G. Thomas, M. V. George and P. V. Kamat, J. Chem. Soc., Faraday Trans., 1992, 88, 3419.
24. S. Das, T. L. Thanulingam, K. G. Thomas, P. V. Kamat and M. V. George, J. Phys. Chem., 1993, 97, 13620.
25. K-Y. Law and C. Chen, J. Phys. Chem., 1989, 93, 2533.
26. K. Liang, K-Y. Law and D. G. Whitten, J. Phys. Chem., 1994, 98, 13379.
27. I. R. Girling, N. A. Cade, P. V. Kolinski, J. D. Earls and G. H. Cross, Thin Solid Films, 1985, 132, 101.
28. D. J. Williams, Angew. Chem., Int. Ed. Engl., 1984, 23, 690.
29. S. Allen and R. T. Murray, Phys. Scr., 1988, T23, 275.