Experimental and Theoretical Characterization of 4π‐Electron Möbius Aromatic System of a 1,2‐Digermacyclobutadiene<sup>†</sup>
Abstract 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 Ge 2 C 2 ring. A remarkably high Möbius 4π‐electron aromatic character in the Ge 2 C 2 ring can be suggested from theoretical calculations, in sharp contrast to the significant antiaromaticity of the all‐carbon cyclobutadiene ring.
Authors
- Koichiro Masada (ORCID: https://orcid.org/0000-0002-5857-7342)
- Daisuke Hashizume (ORCID: https://orcid.org/0000-0001-7152-4408)
- Arturo Espinosa Ferao (ORCID: https://orcid.org/0000-0003-4452-0430)
- Takahiro Sasamori (ORCID: https://orcid.org/0000-0001-5410-8488)
- Tomohiro Sugahara (ORCID: https://orcid.org/0000-0002-7127-7571)
- Norihiro Tokitoh (ORCID: https://orcid.org/0000-0003-1083-7245)
Institutions
- University of Tsukuba (JP)
- Kyoto University (JP)
- RIKEN Center for Emergent Matter Science (JP)
- Instituto de Investigaciones Químicas (ES)
- Kyoto University Institute for Chemical Research
- Universidad de Murcia (ES)
Publication Details
- Journal
- Angewandte Chemie
- Published
- 2024-09-05
- DOI
- https://doi.org/10.1002/ange.202413426
- Citations
- 1
- Primary Topic
- Synthesis and Properties of Aromatic Compounds
- Type
- article
- Field-Weighted Citation Impact
- 0.25
Funders
- Japan Science and Technology Corporation
- Japan Society for the Promotion of Science