Patent ID: 7385053

Claim:
A bridge group composition comprising two or more different structures, in any combination, of Structures 1-6: wherein: n is 0, 1, 2, or 3; X and Y are oxygen and/or sulfur in any combination; X 2 and X 3 are chlorine or fluorine; Y 2 is nitrogen or carbon; arom is a substituted or unsubstituted phenyl, naphthyl or other polycyclic aromatic ring structure; Z is chloride, fluoride, 2,3,5,6-tetrafluoro-4-sulfo-phenoxide, N-hydroxysuccinimide or other electrophilic group; and R 1 -R 6 comprise hydrocarbon linker groups containing from 2-1000 atoms, optionally containing one or more halogen or heteroatoms selected from the group consisting of O, N, Si, P and S; wherein the two or more different structures are joined together through their respective linker groups R 1 -R 6 , and wherein said joining is one or more of end-to-end, branched, or dendritic, in any combination.