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Strategies for the construction of TMS-protected first generation star and dendritic polyynes, which are subsequently metallated to give multiple Co 2 C 2 (CO) 6 clusters, are reported. In the absence of crystallographic data, well-resolved 13 C NMR spectroscopy is a powerful technique for confirming the presence of core, inner and peripheral cluster domains.
A series of compounds containing polyalkyne frameworks decorated with dicobalt carbonyl clusters and containing up to 10 Co atoms has been prepared and characterized; spectroscopic data for new compounds are analyzed to provide correlations to assist in the characterization of cobaltadendrimers.
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