Lithium monoxide anion: A ground-state triplet with the strongest base to date

Zhixin Tian, Bun Chan, Michael B. Sullivan, Leo Radom, Steven R. Kass

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Lithium monoxide anion (LiO-) has been generated in the gas phase and is found to be a stronger base than methyl anion (CH3 -). This makes LiO-the strongest base currently known, and it will be a challenge to produce a singly charged or multiply charged anion that is more basic. The experimental acidity of lithium hydroxide is ΔHacid° = 425.7 ± 6.1 kcal·mol-1 (1 kcal = 4.184 kJ) and, when combined with results of high-level computations, leads to our best estimate for the acidity of 426 ± 2 kcal·mol-1.

Original languageEnglish (US)
Pages (from-to)7647-7651
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume105
Issue number22
DOIs
StatePublished - Jun 3 2008

Keywords

  • Computations
  • Mass spectrometry
  • Super base

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