To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Languages
Recent
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

Lithium monoxide anion

From Wikipedia, the free encyclopedia

Lithium monoxide anion
Names
IUPAC name
Lithium monoxide anion
Other names
Lithate
Identifiers
3D model (JSmol)
  • InChI=1S/Li.O/q;-1
    Key: IXZJKKSRIFXCQD-UHFFFAOYSA-N
  • [Li]-[O-]
Properties
LiO
Molar mass 22.94 g·mol−1
Conjugate acid Lithium hydroxide
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Extremely corrosive
Related compounds
Related bases
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Lithium monoxide anion (LiO) is a superbase existing in the gas phase. It was the strongest known base until 2008, when the isomeric diethynylbenzene dianions were determined to have a higher proton affinity. The methanide ion CH3 was the strongest known base before lithium monoxide anion was discovered.[2]

LiO has a proton affinity of ~1782 kJ/mol.[3]

Synthesis of the lithium monoxide anion

The anion is prepared in a mass spectrometer by successive decarboxylation and decarbonylation of lithium oxalate anion under collision-induced dissociation (CID) conditions:

LiO−C(=O)−CO2 → LiO−C(=O) + CO2
LiO−C(=O) → LiO + CO

The above method to synthesize the lithium monoxide anion is inefficient and difficult to carry out. The required ion rapidly reacts with traces of moisture and molecular oxygen present in the air. The reaction is further intensified by the high pressure argon that is introduced into the instrument to carry out the CID step.[4]

References

  1. ^ "Lithium oxide anion". webbook.nist.gov.
  2. ^ Poad, Berwyck L. J.; Reed, Nicholas D.; Hansen, Christopher S.; Trevitt, Adam J.; Blanksby, Stephen J.; Mackay, Emily G.; Sherburn, Michael S.; Chan, Bun; Radom, Leo (2016). "Preparation of an ion with the highest calculated proton affinity: ortho-diethynylbenzene dianion". Chemical Science. 7 (9): 6245–6250. doi:10.1039/C6SC01726F. PMC 6024202. PMID 30034765.
  3. ^ Srivastava, Ambrish Kumar; Misra, Neeraj (6 February 2016). "OLi3O anion: Designing the strongest base to date using OLi3 superalkali". Chemical Physics Letters. 648: 152–155. Bibcode:2016CPL...648..152S. doi:10.1016/j.cplett.2016.02.010.
  4. ^ Tian, Zhixin; Chan, Bun; Sullivan, Michael B.; Radom, Leo; Kass, Steven R. (2008-06-03). "Lithium monoxide anion: A ground-state triplet with the strongest base to date". Proceedings of the National Academy of Sciences of the United States of America. 105 (22): 7647–7651. Bibcode:2008PNAS..105.7647T. doi:10.1073/pnas.0801393105. ISSN 0027-8424. PMC 2409378. PMID 18511563.

See also

This page was last edited on 10 December 2023, at 05:45
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.