Metal secondary amides derived from the highly hindered 2,4,6-tri-t-butylaniline; X-ray crystal structure of trans-[Li(µ-NHAr)(OEt2)]2(Ar = C6H2But3-2,4,6)
- 1 January 1984
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 3,p. 148-149
- https://doi.org/10.1039/c39840000148
Abstract
Treatment of 2,4,6-tri-t-butylaniline (NH2Ar) with LiBun in OEt2 yields the white crystalline trans-[Li(µ-NHAr)(Oet2)]2, (2), which in turn furnishes the orange Sn(NHAr)2(with SnCl2) or a mixture of NiI/NiIIamides {using [Nil2(PPh3)2]} which with CO affords colourless crystalline cis-[Ni(Co)2(NHAr)2];the lithium amide(2) has a centrosymmetric four- membered planar LiNLiN ring with the substituents at N arranged in a transoid fashion: Li–N = 2.041(6) and 1.987(5)Å, Li–O = 1.906(5)Å, and ∠NLiN = 102.2(2)°Keywords
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