Stable yellow imidazolium compounds
Described herein is a yellow imidazolium chromophore having a structure according to Formula V.
1. A compound having a structure according to Formula V and tautomers and salts thereof:
wherein:
(i) R 1b , R 1c and R 1f are independently selected from the group consisting of hydrogen, alkyl, halogen substituted alkyl, alkenyl, alkynyl, aryl, hydroxyalkyl, aminoalkyl, alkyl group carrying a quaternary ammonium cation, alkoxy, aryloxy, acyl, halogen, a heterocyclic moiety, thioether, thiol with a linker group, alkylsulfonate, alkylsulfate, carboxylalkyl, acrylamide or substituted acrylamides with a linker group, vinylsulfone with a linker group, sulfonyl ethyl sulfate with a linker group, halo-s-triazines with a linker group, halopyrimidines with a linker group, haloquinoxalines with a linker group, or attached to a polymer backbone through a linker group;
(ii) R 1a and R 1d are independently selected from the group consisting of alkyl, halogen substituted alkyl, alkenyl, alkynyl, aryl, hydroxyalkyl, aminoalkyl, alkyl group carrying a quaternary ammonium cation, a heterocyclic moiety, thiol with a linker group, alkylsulfonate, alkylsulfate, carboxylalkyl, acrylamide or substituted acrylamides with a linker group, vinylsulfone with a linker group, sulfonyl ethyl sulfate with a linker group, halo-s-triazines with a linker group, halopyrimidines with a linker group, haloquinoxalines with a linker group, or attached to a polymer backbone through a linker group;
(iii) R 1e and R 1g are selected from the group consisting of hydrogen, alkyl, halogen substituted alkyl, alkenyl, alkynyl, aryl, hydroxyalkyl, aminoalkyl, alkyl group carrying a quaternary ammonium cation, a heterocyclic moiety, thiol with a linker group, alkylsulfonate, alkylsulfate, carboxylalkyl, acrylamide or substituted acrylamides with a linker group, vinylsulfone with a linker group, sulfonyl ethyl sulfate with a linker group, halo-s-triazines with a linker group, halopyrimidines with a linker group, haloquinoxalines with a linker group, or are attached to a polymer backbone through a linker group, or part of a cyclic structure and joined by substituted or unsubstituted alkyl or heteroalkyl groups
(iv) R 1h is selected from the group consisting of hydrogen, alkyl, halogen substituted alkyl, alkenyl, alkynyl, aryl, hydroxyalkyl, aminoalkyl, alkyl group carrying a quaternary ammonium cation, a heterocyclic moiety, thiol with a linker group, alkylsulfonate, alkylsulfate, carboxylalkyl, acrylamide or substituted acrylamides with a linker group, vinylsulfone with a linker group, sulfonyl ethyl sulfate with a linker group, halo-s-triazines with a linker group, halopyrimidines with a linker group, haloquinoxalines with a linker group, or attached to a polymer backbone through a linker group.
2. The compound according to claim 1 , wherein R 1a and R 1d both are —CH 2 CH 2 CH 2 NH 2 ; wherein R 1e is propyl; and wherein R 1h is hydrogen.
3. The compound according to claim 2 , wherein the compound is attached to a polyethylene amine backbone through R 1a , R 1d , or R 1g .
4. The compound according to claim 2 , wherein the compound is attached to a polyallylamine backbone through R 1a , R 1d , or R 1g .
5. The compound according to claim 2 , wherein the compound is attached to a peptide or protein backbone through R 1a , R 1d , or R 1g .
6. The compound according to claim 1 , wherein R 1a is —CH 2 CH 2 CH 2 NH 2 ; R 1d is hexyl; R 1e and R 1g are part of a 6-membered ring; and R 1h is hydrogen.
7. The compound according to claim 6 , wherein the compound is attached to a polyethyleneimine backbone through R 1a or R 1d .
8. The compound according to claim 6 , wherein the compound is attached to a polyallylamine backbone through R 1a or R 1d .
9. The compound according to claim 6 , wherein the compound is attached to a peptide or protein backbone through R 1a or R 1d .
10. The compound according to claim 1 wherein R 1a and R 1d both are —CH 2 CH 2 CH 2 NH 2 ; R 1e and R 1g are part of a 6-membered ring; and R 1h is hydrogen.
11. The compound according to claim 10 , wherein the compound is attached to a polyethyleneimine backbone through R 1a or R 1d .
12. The compound according to claim 10 , wherein the compound is attached to a polyallylamine backbone through R 1a or R 1d .
13. The compound according to claim 10 , wherein the compound is attached to a peptide or protein backbone through R 1a or R 1d .
14. The compound according to claim 1 wherein R 1a , R 1d , and R 1g are all —CH 2 CH 2 CH 2 NH 2 , and wherein R 1h is hydrogen.
15. The compound according to claim 14 , wherein the compound is attached to a polyethyleneimine backbone through R 1a , R 1d , or R 1g .
16. The compound according to claim 14 , wherein the compound is attached to a polyallylamine backbone through R 1a , R 1d , or R 1g .
17. The compound according to claim 1 wherein R 1a and R 1d both are —CH 2 CH 2 CH 2 NH 2 and R 1e is hexyl, and R 1h is hydrogen.
18. The compound according to claim 16 , wherein the compound is attached to a polyethylene amine backbone through R 1a or R 1d .
19. The compound according to claim 16 , wherein the compound is attached to a polyallylamine backbone through R 1a or R 1d .
20. The compound according to claim 16 , wherein the compound is attached to a peptide or protein backbone through R 1a or R 1d .