- Exploring the solid state and solution structural chemistry of the utility amide potassium hexamethyldisilazide (KHMDS).
Exploring the solid state and solution structural chemistry of the utility amide potassium hexamethyldisilazide (KHMDS).
Dalton transactions (Cambridge, England : 2003) (2017-05-04)
Ana I Ojeda-Amador, Antonio J Martínez-Martínez, Gemma M Robertson, Stuart D Robertson, Alan R Kennedy, Charles T O'Hara
PMID28466908
ABSTRACT
The structural chemistry of eleven donor complexes of the important Brønsted base potassium 1,1,1,3,3,3-hexamethyldisilazide (KHMDS) has been studied. Depending on the donor, each complex adopted one of five general structural motifs. Specifically, in this study the donors employed were toluene (to give polymeric 1 and dimeric 2), THF (polymeric 3), N,N,N',N'-tetramethylethylenediamine (TMEDA) (dimeric 4), (R,R)-N,N,N',N'-tetramethyl-1,2-diaminocyclohexane [(R,R)-TMCDA] (dimeric 5), 12-crown-4 (dimeric 6), N,N,N',N'-tetramethyldiaminoethyl ether (TMDAE) (tetranuclear dimeric 8 and monomeric 10), N,N,N',N'',N''-pentamethyldiethylenetriamine (PMDETA) (tetranuclear dimeric 7), tris[2-dimethyl(amino)ethyl]amine (Me