Oxygen sensors
Oxygen sensing luminescent dyes, polymers and sensors comprising these sensors and methods of using these sensors and systems are provided.
1. A compound of Formula I:
wherein M is H, Pd, Zn, Pt, Gd, or Yb;
each R 1 is same or different and, independently, C(O)X—(CH 2 ) n —YC(O)C(R 4 )CH 2 or C(O)X—(CH 2 CH 2 O) m CH 2 CH 2 —YC(O)C(R 4 )CH 2 ;
R 7 is C(O)X—(CH 2 ) n —YC(O)C(R 4 )CH 2 , C(O)X—(CH 2 CH 2 O)CH 2 CH 2 —YC(O)C(R 4 )CH 2 ;
R 2 and R 3 are fused, in each case, to form a cycloalkenyl, aryl, or heteroaryl group;
X is O or NR 5 ;
Y is O;
R 5 and R 4 are independently H or C 1 -C 4 alkyl;
each R 6 is same or different and, independently, H or F;
n is 1-10; and
m is 1-300.
2. The compound of claim 1 wherein R 2 and R 3 are fused to form an aryl.
3. The compound of claim 1 wherein R 2 and R 3 are fused to form a heteroaryl.
4. The compound of claim 1 wherein R 2 and R 3 are fused to form a cycloalkenyl.
5. The compound of claim 1 wherein and R 1 and R 7 are both C(O)X—(CH 2 ) n —YC(O)C(R 4 )CH 2 .
6. The compound of claim 1 wherein M is Pd.
7. The compound of claim 1 wherein R 2 and R 3 are fused to form a benzene ring, and R 1 and R 7 are both C(O)NH(CH 2 ) 2 OC(O)C(CH 3 )CH 2 .
8. The compound of claim 1 , wherein the compound is:
9. The compound of claim 1 wherein the compound has an absorption maximum between 500 nm and 900 nm and an emission maximum between 600 nm and 1000 nm.
10. The compound of claim 9 has an absorption maximum between 500 nm and 800 nm.
11. The compound of claim 9 has an emission maximum between 650 nm and 900 nm.