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An Isolable Radical Anion of an Organosilicon Cluster Containing Only σ Bonds
Author(s) -
Otsuka Kyohei,
Matsumoto Naozumi,
Ishida Shintaro,
Kyushin Soichiro
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201500523
Subject(s) - organosilicon , unpaired electron , electron paramagnetic resonance , chemistry , ion , cluster (spacecraft) , crystallography , molecular orbital , molecule , photochemistry , polymer chemistry , organic chemistry , nuclear magnetic resonance , physics , computer science , programming language
The radical anion of octa‐ tert ‐butyloctasilacubane was generated and isolated. The EPR spectrum showed the satellites due to the tertiary 13 C nuclei of the eight tert ‐butyl groups. The X‐ray crystallographic analysis showed that the SiSi bonds are shortened and the SiC bonds are elongated compared with those of octa‐ tert ‐butyloctasilacubane. These results are well explained by the distribution of an unpaired electron in the singly occupied molecular orbital (SOMO).