Longitudinally extended molecular wires based upon PtC equivalent to CC equivalent to CC equivalent to CC equivalent to C repeat units: Iterative syntheses of functionalized linear PtC8Pt, PtC8PtC8Pt, and PtC8PtC8PtC8Pt assemblies
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abstract
Condensations of (p-tol3P)2PtCl2 with Me3-SnCCCCSiMe3 and HCCCCSiMe3 give mono- or bis((trimethylsilyl)butadiynyl) complexes that are desilylated and elaborated by oxidative cross-couplings and homocouplings to give the title compounds trans-Cl[(p-tol3P) 2PtCCCCCCCC]mPt(P-p-tol 3)2Cl (m = 1-3).