C,N-2-[(Dimethylamino)methyl]phenylplatinum Complexes Functionalized with C60 as Macromolecular Building Blocks
Citations Over TimeTop 23% of 2001 papers
Abstract
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 [{C6H4(CH2NMe2)-2-Pt(PPh3)}2(4,4‘-bpy)](BF4)2 (2), the crystal structure of which was determined. To introduce C60 groups into this assembly, [1,2]-methanofullerene-substituted H−C,N ligands were prepared and platinated using cis-PtCl2(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.
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