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- Title
A Redox‐Active Microporous Organosiloxane Containing a Stable Neutral Radical, Trioxotriangulene.
- Authors
Murata, Tsuyoshi; Asakura, Noriaki; Tsuji, Ryotaro; Kanzaki, Yuki; Sato, Kazunobu; Takui, Takeji; Morita, Yasushi
- Abstract
A new silyl‐substituted trioxotriangulene (TOT) neutral radical and corresponding porous organosiloxanes (POSs) were synthesized. The neutral radical exhibited a peculiarly high stability and formed a diamagnetic π‐dimer characteristic to TOT neutral radicals stabilized by the strong multiple SOMO‐SOMO interaction in both solution and solid states. POSs including TOT units within the organosiloxane‐wall were prepared by polycondensation of the silyl groups and formed microporous structures with ∼1 nm‐size diameters. Redox ability of TOT units in the POS was demonstrated by the treatment of oxidant/reductant in heterogeneous suspension condition, where the TOT units were reversibly converted between reduced and neutral radical species. Furthermore, the solid‐state electrochemical measurements of the POS revealed the reversible multi‐stage redox ability of TOT units involving polyanionic species within the organosiloxane‐wall.
- Subjects
SOLID solutions; SILYL group; SILICONES; OXIDATION-reduction reaction; RADICALS (Chemistry)
- Publication
Chemistry - A European Journal, 2022, Vol 28, Issue 12, p1
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202104447