C,N-2-[(Dimethylamino)methyl]phenylplatinum Complexes Functionalized with C60 as Macromolecular Building Blocks

The application of platinum(II) complexes based on the N,N -dimethylbenzylamine ligand (abbreviated as H−C,N) in macromolecular synthesis was demonstrated. Two cationic C,N−platinum moieties were linked with a 4,4‘-bipyridine bridge, giving [{C 6 H 4 (CH 2 NMe 2 )-2-Pt(PPh 3 )} 2 (4,4‘-bpy)](BF 4 ) 2 ( 2 ), the crystal structure of which was determined. To introduce C 60 groups into this assembly, [1,2]-methanofullerene-substituted H−C,N ligands were prepared and platinated using cis -PtCl 2 (DMSO) 2 . Application of the methanofullerene C,N−platinum complexes in the preparation of macrostructures afforded insoluble compounds. Therefore, phosphine ligands containing perfluoroalkyl groups were introduced into the fullerene-based complexes via a ligand exchange reaction. These fluorous complexes showed enhanced solubility in organic and fluorinated solvents. A soluble bismethanofullerene C,N−platinum(II) structure with a 4,4‘-bipyridine bridge was obtained using these fluorinated fullerenes.