Accurate measurement of effective Li–Li scalar coupling constants: the NMR missing link for alkyllithium aggregates. Issue 99 (27th November 2020)

• Record Type: Journal Article
• Authors: Hedouin, Matthieu; Harrison-Marchand, Anne; Maddaluno, Jacques; Oulyadi, Hassan
• Is Part Of: Chemical communications. Volume 56:Issue 99(2020)
• Page Start: 15565
• Page End: 15568
• Publication Date: 2020-11-27
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc06871c
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Alkyllitium mixed aggregates: dynamics-free value of the 2 J Li–Li as a simple access to various structural factors, including the dynamics, solvation and the steric hindrance of alkyl chains. Abstract : Scalar coupling in organolithium systems can provide access to useful structural and dynamic informations. In this work, we propose a robust method for the accurate measurement of the effective 2 J Li–Li coupling constant in tetramerics alkyllithium aggregates. This crucial information, unavalaible to date, gives a simple access to various structural factors, including the dynamics, solvation and the operative steric hindrance of alkyl chains.