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Reversible Isomerizations between 1,4-Digermabenzenes and 1,4-Digerma-Dewar-benzenes: Air-Stable Activators for Small Molecules
- Sugahara, Tomohiro, Guo, Jing-Dong, Hashizume, Daisuke, Sasamori, Takahiro, Tokitoh, Norihiro
- Journal of the American Chemical Society 2019 v.141 no.6 pp. 2263-2267
- acetylene, ambient temperature, carbon dioxide
- The first examples of stable, crystalline, and air-sensitive 1,4-digermabenzenes were isolated. These species photochemically isomerize into the corresponding air-stable digerma-Dewar-benzenes. More importantly, alkyl-substituted Dewar-type-1,4-digermabenzenes can be considered as reversible “air-stable activators” for small molecules such as dihydrogen, carbon dioxide, and acetylene at room temperature. The regeneration of these activators can be accomplished via a thermal retro-isomerization that affords the corresponding 1,4-digermabenzenes.