IP Library › Granted Patent US 7,507,840
Granted Patent B2
US 7,507,840 · App. 11/077,607 · Granted Mar 24, 2009

Acceptor compounds useful for making hyperpolarizable organic chromophores

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Quick Facts
Patent No.
US 7,507,840
App. No.
11/077,607
Granted
Mar 24, 2009
Kind
B2
Abstract

Acceptor compounds useful for making hyperpolarizable organic chromophores having a π-donor conjugated to a π-acceptor through a π-bridge.

Claims (19)

1. A compound having the structure:

wherein R 1 and R 2 are alkyl groups, R 4 a, R 4 b, and R 4 c are independently selected from F, CN, CF 3 , and CF 3 SO 2 , provided that R 4 a, R 4 b, and R 4 c are not all CN.

2. The compound of claim 1 , wherein R 4 a, R 4 b, and R 4 c are independently selected from F, CF 3 , and CF 3 SO 2 .

3. The compound of claim 1 , wherein R 4 a is CN, R 4 b is CN, and R 4 c is CF 3 SO 2 .

4. The compound of claim 1 , wherein R 4 a is CN, R 4 b is CF 3 SO 2 , and R 4 c is CN.

5. The compound of claim 1 , wherein R 4 a is CF 3 SO 2 , R 4 b is CN, and R 4 c is CF 3 SO 2 .

6. The compound of claim 1 , wherein R 4 a is CF 3 SO 2 , R 4 b is CF 3 SO 2 , and R 4 c is CN.

7. The compound of claim 1 , wherein R 4 a, R 4 b, and R 4 c are independently selected from CN, CF 3 , and CF 3 SO 2 .

8. The compound of claim 1 , wherein R 4 a is F, R 4 b is CN, and R 4 c is F.

9. The compound of claim 1 , wherein R 4 a is F, R 4 b is F, and R 4 c is CN.

10. The compound of claim 1 , wherein R 4 a is CF 3 , R 4 b is CN, and R 4 c is CF 3 .

11. The compound of claim 1 , wherein R 4 a is CF 3 , R 4 b is CF 3 , and R 4 c is CN.

12. The compound of claim 1 , wherein R 4 a is CF 3 SO 2 , R 4 b is CF 3 SO 2 , and R 4 c is CF 3 SO 2 .

13. The compound of claim 1 , wherein R 4 a is CN, R 4 b is CF 3 SO 2 , and R 4 c is CF 3 SO 2 .

14. The compound of claim 1 , wherein R 1 and R 2 are methyl.

15. The compound of claim 1 , wherein R 4 a, R 4 b, and R 4 c are F.

16. The compound of claim 1 , wherein R 4 a, R 4 b, and R 4 c are CF 3 .

17. The compound of claim 1 , wherein R 1 and R 2 are methyl and R 4 a, R 4 b, and R 4 c are F.

18. The compound of claim 1 , wherein R 1 and R 2 are methyl and R 4 a, R 4 b, and R 4 c are CF 3 .

Assignments (1)
RELEASE OF SECURITY INTEREST Recorded Feb 24, 2026
From: ADAMS STREET CREDIT ADVISORS LP
To: REDWIRE SPACE SOLUTIONS, LLC, FORMERLY KNOWN AS ROCCOR, LLC; REDWIRE SPACE, INC., FORMERLY KNOWN AS MADE IN SPACE, INC.
Reel/Frame 073882/0363 →