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Accurate measurement of effective Li–Li scalar coupling constants: the NMR missing link for alkyllithium aggregates
Chemical Communications ( IF 4.3 ) Pub Date : 2020-11-26 , DOI: 10.1039/d0cc06871c
Matthieu Hedouin 1, 2, 3, 4, 5 , Anne Harrison-Marchand 1, 2, 3, 4, 5 , Jacques Maddaluno 1, 2, 3, 4, 5 , Hassan Oulyadi 1, 2, 3, 4, 5
Affiliation  

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 2JLi–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.

中文翻译:

有效Li-Li标量耦合常数的准确测量:烷基锂聚集体的NMR缺失链

有机锂系统中的标量耦合可以提供对有用的结构和动态信息的访问。在这项工作中,我们提出了一种稳健的方法,用于准确测量四聚体烷基锂聚集体中的有效2 J Li-Li偶联常数。迄今为止尚无此重要信息,可轻松获得各种结构因素,包括烷基链的动力学,溶剂化和有效的空间位阻。
更新日期:2020-11-27
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