Thiophene-related compounds active in nonlinear optics, materials and devices containing them
US5156774A · kind A · utility
15Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1990 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Feb 22, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/4015
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to new thiphene-related compounds of the general formula (I): ##STR1## in which: n is an integer between 1 and 10, advantageously between 1 and 4; PA0 A is an electron-acceptor group; and D is an electron-donor group. These compounds exhibit a high hyperpolarizability and an excellent photochemical stability and are employed especially in optical or electrooptical devices for their activity in nonlinear optics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.