KHMDS

Potassium bis(trimethylsilyl)amide

Potassium bis(trimethylsilyl)amide

Chemical compound

Potassium bis(trimethylsilyl)amide (commonly abbreviated as KHMDS, Potassium(K) HexaMethylDiSilazide) or potassium hexamethyldisilazane[1] is the chemical compound with the formula ((CH3)3Si)2NK. It is a strong, non-nucleophilic base with an approximate pKa of 26 (compare to lithium diisopropylamide, at 36).[citation needed]

Quick Facts Names, Identifiers ...

Structure

In the solid state, the unsolvated compound is dimeric, with two potassium and two nitrogen atoms forming a square. This compound is soluble in hydrocarbon solvents and conducts electricity poorly in solution and in the melt. This is attributed to very strong ion pairing.[3]

See also

References

  1. [1]
    "Potassium Hexamethyldisilazane". sigmaaldrich.com. Retrieved 1 April 2023.
  2. [2]
    Potassium bis(trimethylsilyl)amide, Sigma-Aldrich
  3. [3]
    Tesh, Kris F.; Hanusa, Timothy P.; Huffman, John C. (1990). "Ion pairing in [bis(trimethylsilyl)amido]potassium: The x-ray crystal structure of unsolvated [KN(SiMe3)2]2". Inorg. Chem. 29 (8): 1584–1586. doi:10.1021/ic00333a029.
Share this article:

This article uses material from the Wikipedia article KHMDS, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.