Dendrimers are highly branched molecules that are of interest for applications in medical diagnostics, molecular recognition, catalysis, and photoactive device engineering. We have prepared fully-organic as well as unique metal-rich π-delocalizable dendrimers and have been exploring their properties (the figure shows an example of a third-generation ruthenium alkynyl dendrimer made in our lab; the complete dendritic structure can be generated by replacing the wavy lines with identical arms). This project will explore the synthesis and characterization of new π-delocalizable oligomers and dendrimers at the interface between organic/organometallic chemistry and polymer science.