Synthesis and reactions of metallo-diethynylbenzenes: building blocks for redox-active poly(phenyleneethynylene)s†

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Kevin D. John and Michael D. Hopkins


Abstract

The metallo-diethynylbenzene complex W([triple bond, length half m-dash]CC6H4C[triple bond, length half m-dash]CH-4)(dmpe)2Cl, a precursor to metal-containing poly(phenyleneethynylene)s, has been prepared using alkyne-metathesis methodology and can be coupled into unsaturated organic frameworks at both the ethynyl moiety and the tungsten center and one-electron oxidized to the open-shell cation.


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