Abstract
Proton resonance spectra are reported far the title complexes [Pr(fod)3] and [Eu(fod)3] with a variety of secondary and tertiary amines. At low temperatures both substrate exchange and nitrogen inversion are slow on a proton-resonance time scale. Secondary amines form both 1 : 1 and 2 : 1 adducts; but tertiary amines give 1 : 1 adducts only. In the 2 : 1 adducts of NHMePrn, meso and rac isomers, in approximately equal abundance, can be distinguished. In the 1 : 1 adduct of N-methylpiperidine with [Eu(fod)3], axial and equatorial isomers are present in approximately equal amounts.
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More From: Journal of the Chemical Society, Dalton Transactions
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