Dhnt monomers and polymer dyes with modified photophysical properties

A water-soluble polymer dye comprising at least one co-monomer M1 having a structure according to Formula (Ia):

• wherein
• Ar1 and Ar2 are each independently substituted or unsubstituted aryl or heteroaryl groups and at least one of Ar1 and Ar2 comprises at least one fused thienyl ring;
• each X is independently selected from the group consisting of C and Si;
• each Y is independently selected from the group consisting of a bond, CR1R2, CHR1, CHR2, SiHR2, SiHR1, and SiR1R2, and when Y is a bond X is directly bonded to both rings, and when Y is a bond, Ar1 and Ar2 are not both thienyl;
• each R1 is independently selected from the group consisting of a water-solubilizing moiety, a linker moiety, alkyl, alkene, alkyne, cycloalkyl, hydroxy, haloalkyl, (hetero)aryloxy, (hetero)arylamino, aryl, heteroaryl, a polyethylene glycol (PEG) group, carboxylic acid, ammonium alkyl salt, ammonium alkyloxy salt, ammonium oligoether salt, sulfonate alkyl salt, sulfonate alkoxy salt, sulfonamido oligoether, sulfonamide, sulfinamide, phosphonamidate, phosphinamide, phosphonate,
• each R2 is independently selected from the group consisting of a water-solubilizing moiety, a linker moiety, H, alkyl, alkene, alkyne, cycloalkyl, halogen, haloalkyl, alkoxy, (hetero)aryloxy, aryl, heteroaryl, (hetero)arylamino, a PEG group, sulfonamide-PEG, phosphoramide-PEG, ammonium alkyl salt, ammonium alkyloxy salt, ammonium oligoether salt, sulfonate alkyl salt, sulfonate alkoxy salt, sulfonate oligoether salt, sulfonamido oligoether, sulfonamide, sulfinamide, phosphonamidate, phosphinamide, phosphonate,
• each R3 is independently selected from the group consisting of H, alkyl, alkene, alkyne, cycloalkyl, haloalkyl, alkoxy, (hetero)aryloxy, aryl, (hetero)arylamino, a water-solubilizing moiety, a chromophore, and a PEG group;
• each Z is independently selected from the group consisting of CH2, CHR4, O, NR4, and NH;
• each Q is independently selected from the group consisting of a bond, NH, NR4, C1-C12 alkylene, CHR4, and CH2;
• each R4 is independently selected the group consisting of H, a PEG group, a water-solubilizing moiety, a linker moiety, a chromophore, a linked chromophore, a functional group, a linked functional group, a substrate, a linked substrate, a binding partner, a linked binding partner, a quenching moiety, L2-E, halogen, an amine, hydroxyl, alkylamino, substituted or unsubstituted C1-C12 alkyl, C2-C12 alkene, C2-C12 alkyne, C3-C12 cycloalkyl, C1-C12 haloalkyl, C1-C12 alkoxy, C2-C18 (hetero)aryloxy, C2-C18 (hetero)arylamino, (CH2)x′(OCH2—CH2)y′OR9, wherein each R9 is C1-C8 alkyl, x′ is independently an integer from 0-20 and each y′ is independently an integer from 0-50, Z—(CH2)n—SO2-Q-R3, a C2-C18 (hetero)aryl group, amide, amine, carbamate, carboxylic acid, carboxylate ester, maleimide, activated ester, N-hydroxysuccinimidyl, hydrazine, hydrazone, azide, aldehyde, thiol, and protected groups thereof;
• each W1 is independently a water-solubilizing moiety;
• L1, L2, and L3 are each independently selected linker moieties;
• each E is independently selected from the group consisting of a chromophore, a functional moiety, a substrate, and a binding partner;
• each R7 is independently selected from the group consisting of H, hydroxyl, C1-C12 alkyl, C2-C12 alkene, C2-C12 alkyne, C3-C12 cycloalkyl, C1-C12 haloalkyl, C1-C12 alkoxy, C2-C18 (hetero)aryloxy, C2-C18 (hetero)arylamino, C2-C12 carboxylic acid, C2-C12 carboxylate ester and —OC1-C12 hydroxy;
• at least one of R1, R2, R3, or R4 comprises a water-solubilizing moiety;
• each h is independently an integer from 0 to 50;
• each n is independently an integer from 1 to 20;
• each s is independently 1 or 2;
• and
• each t is independently 0, 1, 2, or 3.