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ChemInform Abstract: Synthesis and Reduction of Silyl-Substituted [5]Radialene. Characterization and Structure of a [5]Radialene Tetraanion with a Ten-Center, Fourteen-Electron π-System.

✍ Scribed by Tsukasa Matsuo; Hidetoshi Fure; Akira Sekiguchi

Publisher: John Wiley and Sons
Year: 2000
Weight: 33 KB
Volume: 31
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200051159

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Thedatafor14(Tm = -1S.2"C,AH = 40kJmol-')areconsistent with the results of McElhaney et al.['31 for other diacylphosphatidylcholines with longer chain lengths (e. g. T, = -18.8 "C and AH = 32.6 kJmol-' for bis(l0-methylun-decanoy1)phosphatidylcholine). Comparison of our data with that for the corres

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Synthesis and Characterization of the Dilithium Salt of the Octasilyl[4]radialene Dianion: Evidence for a Lithium Walk on the Eight-Center, Ten-Electron π-Electron System

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A highly symmetric structure is displayed in toluene by 1, which was obtained by reduction of octasilyl[4]radialene with lithium in THF. The two Li ions of 1 are not fixed to the π-electron system in toluene, but are fluxional, giving rise to a bis-contact ion pair. In a solvating medium such as THF