Dialkyl dichalcogen cations
Copyright policy ) Birgit, Mueller; Helmut, Poleschner; Konrad, Seppelt;
Dialkyl dichalcogen cations
One electron oxidation of dialkyl diselenides and ditellurides is achieved with NO(+)CF(3)SO(3)(-). According to ab initio calculations the radical cations have a trans stucture. In the solid state they dimerize to rectangular units [R-Te](4)(2+) and [R-Se](4)(2+). The long SeSe and TeTe bond is obviously due to a pi*-pi* interaction.
- Freie Universität Berlin Germany
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