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Novel Photochromic Zwitterions For Multifrequency Data Storage

Published online by Cambridge University Press:  25 February 2011

G. J. Ashwell ,
E. J. C. Dawnay ,
A. P. Kuczynski  and
M. Szablewski
G. J. Ashwell*
Affiliation:
Centre for Molecular Electronics, Cranfield Institute of Technology, Cranfield, Bedford MK43 OAL, UK
E. J. C. Dawnay
Affiliation:
Centre for Molecular Electronics, Cranfield Institute of Technology, Cranfield, Bedford MK43 OAL, UK
A. P. Kuczynski
Affiliation:
Centre for Molecular Electronics, Cranfield Institute of Technology, Cranfield, Bedford MK43 OAL, UK
M. Szablewski
Affiliation:
Centre for Molecular Electronics, Cranfield Institute of Technology, Cranfield, Bedford MK43 OAL, UK
*
*To whom correspondence should be addressed.
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Abstract

Z-β-(N-alkyl-4-pyridinium)-α-cyano-4-styryldicyanomethanide (R-P3CNQ) and its quinolinium analogue (R-Q3CNQ) are photochromic. Their LB films show sharp charge transfer bands at 495 nm (C16H33-P3CNQ) , 565 nm (C16H33-Q3CNQ) and 614 nm (C8H17-Q3CNQ) with half widths at half maximum of 27, 22 and 37 nm respectively. They show interesting nonlinear optical properties and have the potential to store three bits per pixel when addressed at these wavelengths.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 173: Symposium Q – Advanced Organic Solid State Materials , 1989 , 507
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

1. Hertler, W.R., Hartzler, H.D., Acker, D.S. and Benson, R.E., J. Amer. Chem. Soc. 84, 3387 (1962).CrossRefGoogle Scholar
2. Ashwell, G.J., UK Patent Appl. 8907311.8 (31 March 1989).Google Scholar
3. Ashwell, G.J., Thin Solid Films, in the press (1989).Google Scholar
4. Ashwell, G.J., Dawnay, E.J.C., Kuczynski, A.P., Szablewski, M., Sandy, I.M., Bryce, M.R., Grainger, A.M., Hasan, M., Jones, A.T., Thorpe, R.C., Bell, N.A. and Broughton, R.A., J. Chem. Soc. Faraday Trans., in the press (1989).Google Scholar
5. Ashwell, G.J., Kuczynski, A.P. and Szablewski, M. in Proceedings of the NATO-ASI Conference on Low-Dimensional Materials and Device Materials, edited by Metzger, R.M., Plenum Press, to be published.Google Scholar
6. Metzger, R.M., Heimer, N.E. and Ashwell, G.J., Mol. Cryst. Liq. Cryst. 107, 133, (1984).Google Scholar
7. Akhtar, S., Tanaka, J., Metzger, R.M. and Ashwell, G.J., Mol. Cryst. Liq. Cryst. 139, 353 (1986).Google Scholar
8. Determined from the atomic coordinates in [6].Google Scholar
9. Miyazaki, J., Ando, E., Yoshino, K. and Morimoto, K., Eur. Patent Appl. EP 193931 A2 (1986);Google Scholar
US Patent 4737427A (1988).Google Scholar
10. Ando, E., Miyazaki, J., Morimoto, K., Nakahara, H. and Fukuda, K., Thin Solid Films 133, 21 (1985)Google Scholar
Ando, E., Hibino, J., Hashida, T. and Morimoto, K., ibid., 160, 279 (1988).Google Scholar
11. Ter Meer, E., Annalen, 181, 1 (1876).Google Scholar
12. Heller, H.G., IEE Proceedings, 130, 209 (1983).Google Scholar
13. Potember, R.S., Hoffman, R.C. and Poehler, T.O., Johns Hopkins APL Technical Digest 7, 129 (1986) and references therein.Google Scholar
14. Nagamura, T., Sakai, K. and Ogawa, T., J. Chem. Soc. Chem. Commun. 1035 (1988).Google Scholar
15. Girling, I.R., Cade, N.A., Kolinski, P.V., Earls, J.D. and Cross, G.H., Thin Solid Films, 132, 101 (1985).Google Scholar
16. Dulcic, A. and Flytzanis, C., Opt. Commun. 25, 402 (1978)Google Scholar
Girling, I.R., Cade, N.A., Kolinski, P.V. and Montgomery, C.M., Electronics Lett. 21, 169 (1985).Google Scholar