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Synthesis of a Paramagnetic Polymer by Ring-Opening Polymerization of a Strained [1]Vanadoarenophane


  • This work was supported by the DFG. T.K. thanks the FCI for a Ph.D. fellowship.


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Salt-elimination reactions led to the formation of highly strained [1]bora- and [1]silavanadoarenophanes, which undergo different types of ring-opening reactions with low-valent platinum complexes. Whereas the boron-bridged derivative opened stoichiometrically by cleavage of the V[BOND]Carene bond, the [1]silavanadoarenophane reacted at the Si[BOND]Cipso bond to afford a polymer containing spin-active metal centers in the main chain (see scheme).

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