Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 141, Issue 5, Pages 1908-1912Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.8b13434
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Funding
- DFG [RO 224/68-1]
- Deutsche Forschungsgemeinschaft
- Danish National Research Foundation [DNRF93]
- SERB India
- Nanjing Tech University [39837123, 39837132]
- Natural Science Foundation of Jiangsu Province for Youth [BK20170964]
- National Natural Science Foundation of China [21703099]
- SICAM Fellowship from Jiangsu National Synergetic Innovation Center for Advanced Materials
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Despite the notable progress in the stabilization of main group radicals by NHCs and cAACs, no germanium radicals have been isolated so far due to synthetic challenges. Stabilization of neutral [:(ER)-R-I](center dot) (E = Si, Ge) radicals is an uphill task, as these reactive transient species are highly susceptible to dimerization. Herein, we report the synthesis of acyclic neutral germanium(I) radicals Cy-cAAC:GeN(SiMe3)Dip (1) and Me-cAAC:GeN(SiPh3)Mes (2) obtained by the reduction of [Ar(SiR3)NGeCl3] with KC8 in the presence of cAAC. Compounds 1 and 2 are well characterized by single crystal X-ray structural analysis, cyclic voltammetry, and EPR spectroscopy. Furthermore, the structure and bonding of compounds 1 and 2 have been investigated by theoretical methods.
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