Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 33, Pages 11248-11252Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201903044
Keywords
charged clusters; penta-anions; superatomic cluster; tetra-anions; universal model
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Funding
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-FG02-96ER45579]
- Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]
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The quest for stable gas-phase anions in highly negative charge states has been a great challenge. While multiply charged anions are stabilized in solids and liquids by compensating cations and solvation cells, respectively, stable anions containing less than a hundred atoms in the gas phase and capable of carrying charge beyond -3 is unknown. Here, we report the discovery of thermodynamically stable tetra- and penta-anions, containing less than 50 and 80 atoms, respectively, in the gas phase. A universal model is developed that explains their stability in terms of the synergy between closed shell, high electron affinity, and size and predicts new highly-charged anions by using the known charged clusters as building blocks. Synthesis of these species can open a new chapter in materials chemistry.
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