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DOI: 10.1039/A808198K (Paper) Reference Section for: Chem. Commun., 1998, 2719-2720

The electrochemistry of tetramesityldisilene, Mes2Si[double bond, length half m-dash]SiMes2

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Zeng-Rong Zhang and James Y. Becker

Abstract

The outcome of the controlled potential oxidation and reduction of a disilene, tetramesityldisilene (TMDS), indicates that the main silicon containing products involve only one silicon atom and have the general structure Mes2SiX(Y), X and Y being H, OH or F.

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  11. All experiments were carried out in a drybox ([H2O] < 1 ppm; [O2] < 1 ppm), employing controlled potential electrolysis (on Pt) in an ‘H’ type two-compartment cell and pulsing from 0 to 0.5 V (vs. Ag wire) every 0.5 s. Typically, the working compartment contained 0.1–0.2 mmol of disilene dissolved in 25 ml solution. Electricity consumption is ca. 1 F mol–1. Solvents MeCN and THF were distilled over P2O5 and benzophenone/Na, respectively. All electrolytes were dried under vacuum (ca. 30 mmHg) at 105 °C for 48 h. HRMS results for MH+: Found (calc. for M). 1: 305.1547 (305.1547 for C18H23F2Si); 2: 287.1620 (287.1640 for C18H24FSi); 3: 303.1590 (303.1595 for C18H24FOSi); 4: 269.1733 (269.1745 for C18H25Si); 5: 285.1500 (285.1694 for C18H25OSi); 6: 301.1420 (301.1643 for C18H25O2Si); 7: 120.0910 (120.0948 for C9H12); 8: 470.2155 (470.2120 for C27H33F3Si2).
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