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Three new star‐shaped macromolecules with hexakis(fluoren‐2‐yl)benzene as the core and pyridine as the periphery (2Py‐HFB, 3Py‐HFB, and 4Py‐HFB) are synthesized and characterized. The synthetic conditions of octacarbonyldicobat‐catalyzed cycloaddition reaction for different alkyne precursors are investigated. The coordination interaction between the pyridine ring of alkyne precursor and the cobalt...
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