Experimental and Theoretical Characterization of 4π-Electron Möbius Aromatic System of a 1,2-Digermacyclobutadiene.
作者信息
Sugahara Tomohiro, Hashizume Daisuke, Espinosa Ferao Arturo, Masada Koichiro, Tokitoh Norihiro, Sasamori Takahiro
机构信息
Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto, 611-0011, Japan.
RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.
出版信息
Angew Chem Int Ed Engl. 2025 Jan 2;64(1):e202413426. doi: 10.1002/anie.202413426. Epub 2024 Oct 28.
We present the visualization of the experimental valence electron-density distribution (EDD) in the isolated 1,2-digermacyclobutadiene ring system, revealing the unique 4π electron-delocalization on the four-membered GeC ring. A remarkably high Möbius 4π-electron aromatic character in the GeC ring can be suggested from theoretical calculations, in sharp contrast to the significant antiaromaticity of the all-carbon cyclobutadiene ring.
Zotero 插件