Accurate measurement of effective Li–Li scalar coupling constants: the NMR missing link for alkyllithium aggregates,Chemical Communications

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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 ²J_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.

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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