Patent ID: 7354750

Claim:
A method for isolating target material from a starting material comprising: (a) contacting the starting material with a composition selected from the group consisting of: X is a substituted or unsubstituted alkylene moiety, a substituted or unsubstituted aralkylene moiety, or a substituted or unsubstituted arylene moiety; R 2 and R 3 are independently selected from R 1 , a hydrocarbon moiety, a substituted hydrocarbon moiety, a halogen atom, a hydrogen atom, a hydroxy, an alkoxy, a thiol, an amine, a silanol bond to the solid support, a bond to another silane ligand, or Oâ€”Siâ€”Y 1 Y 2 Y 3 , wherein Y 1 , Y 2 and Y 3 are independently selected from a hydrocarbon moiety or a substituted hydrocarbon moiety; R 4 is a hydrocarbon moiety, a substituted hydrocarbon moiety, or a hydrogen atom; M is a metal ion; and n is an integer â‰§1; and wherein X is a substituted or unsubstituted alkylene moiety, a substituted or unsubstituted aralkylene moiety, or a substituted or unsubstituted arylene moiety; R 4 is a hydrocarbon moiety, a substituted hydrocarbon moiety, or a hydrogen atom; M is a metal ion; n is an integer â‰§1; and m is 0 or 1; to form a complex between at least a portion of the target material and the composition.