Metal Centers as Termination Groups Surface Functionalization

3 Metal Centers as Termination Groups (Surface Functionalization) 

Since these organometallic dendrimers have non-interacting ferrocenyl redox centers, Moran and coworkers1401 successfully modified electrode surfaces by electrodeposition of these dendritic materials in their oxidized forms. Electrodeposition was accomplished by controlled potential electrolysis or by repetitive anodic and cathodic cycling the amount of electroactive dendrimer deposited could thus be regulated. 

While investigating the potential to improve on the original method of cascade prepa-rationf59, Moors and Vdgtle 60a constructed a hexaimine dendrimer, which was readily converted to the tris-Co complex (66) in quantitative yield. Lhotak and Shankai[60b have addressed the potential for creation of calix[4]arene-based dendrimers and examined some metal-binding properties for the corresponding oligomers. 

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