Modification of silica with viologenic groups is described. N,N'-Diallyl-gamma,gamma'-dipyridinium dibromide obtained by the reaction of allyl bromide with gamma,gamma'-dipyridyl was hydrosilylated with triethoxysilane followed by copolycondensation of the synthesized bis(3-triethoxysilylpropyl)-gamma,gamma'-dipyridinium dibromide with tetraethoxysilane.
Modification of silica with viologenic groups is described. N,N'-Diallyl-gamma,gamma'-dipyridinium dibromide obtained by the reaction of allyl bromide with gamma,gamma'-dipyridyl was hydrosilylated with triethoxysilane followed by copolycondensation of the synthesized bis(3-triethoxysilylpropyl)-gamma,gamma'-dipyridinium dibromide with tetraethoxysilane.