Monohydrogentartrate crystalline structure having nonlinear quad

Details Monohydrogentartrate crystalline structure having nonlinear quad Monohydrogentartrate crystalline structure having nonlinear quad

1993-04-23

1994-12-20

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21390

Patent

active

053747348

ABSTRACT:
The present invention relates to new left-handed or right-handed monohydrogentartrate crystalline structures having nonlinear quadratic effects and a wide transparency range extending from the visible to the near infrared, consisting of optionally substituted 2-amino-5-nitropyridinium cations in combination with a polyanionic organic matrix formed of left-handed or right-handed monohydrogentartrate anions.
It also relates to a process for the preparation of these crystalline structures consisting in mixing one mole of cation base with at least two moles of left-handed and/or right-handed tartaric acid. It finally relates to a device having an electrooptical effect containing said crystalline structure.

REFERENCES:
Schnekenburger et al., Arch. Pharm., 316(1), pp. 27-33, 1983.
J. Opt. Soc. Am.B/vol. 4, No. 6/ Jun. 1987, pp. 998-1012.
Nonlinear Optical Properties, pp. 27-56, 1983.
J. Chem. Phys. 74(9), May 1, 1981, pp. 4800-4811.
J. Chem. Phys. 81(9), Nov. 1, 1984, pp. 4160-4167.
Molecular Engineering 1: 141-152, 1991.
J. Chem. Phys. 75(3), Aug. 1, 1981, pp. 1509-1516.
Chemical Physics, 150, 125-135, 1991.
Acta Cryst. (1966) 21, 237.
Appl. Cryst. (1979), 12, 537-544.

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