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- W2951269422 abstract "A new set of conjugated oligomers C6H5C…︁C–(1,2-C6H4C…︁C)n – C6H5 (10; n = 3–7) comprised of acetylene and phenyl units linked together at the 1,2 positions of the aromatic ring is introduced. The facile synthesis of these compounds is achieved through the Pd-mediated coupling reaction of diiodo- and dibromobenzene with the appropriate ethynyl component. Spectroscopic data of the new compounds are discussed in light of electronic conjugation of the extended π system. Thermolysis of oligomers 10 indicates that rearrangement of the triple bonds occurs to form higher conjugated oligo(acenes). The topology of two members (10; n = 2, 3) is confirmed by X-ray analysis and reveals a propensity for intramolecular π-stacking of the phenyl rings leading to a helical arrangement." @default.
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- W2951269422 date "1993-01-01" @default.
- W2951269422 modified "2023-10-16" @default.
- W2951269422 title "Highly Unsaturated Oligomeric Hydrocarbons: α‐(Phenylethynyl)‐ω‐phenylpoly[1,2‐phenylene(2,1‐ethynediyl)]" @default.
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- W2951269422 doi "https://doi.org/10.1002/cber.19931260123" @default.
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