2-amino-5-nitropyridinium halide crystal structure and process for the preparation of said crystal structures
US5637717A · kind A · utility
1Cited by
2References
3Claims
0Family size
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Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3612
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to new noncentrosymmetric crystal structures consisting of an optionally substituted 2-amino-5-nitropyridinium halide. It also relates to a process for the preparation of these crystal structures. Finally, it relates to a device with an electro-optical effect comprising said crystal structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.