Solvation-Free Li+ Lewis Acid Enhancing Reaction: Kinetic Study of [5,6]-Li+@PCBM to [6,6]-Li+@PCBM.,Organic Letters

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Solvation-Free Li+ Lewis Acid Enhancing Reaction: Kinetic Study of [5,6]-Li+@PCBM to [6,6]-Li+@PCBM.
Organic Letters ( IF 4.9 ) Pub Date : 2020-09-01 , DOI: 10.1021/acs.orglett.0c02570
Yue Ma _{1,

2} , Hiroshi Ueno _{1,

3} , Hiroshi Okada _{3,

4} , Sergei Manzhos ₅ , Yutaka Matsuo _{1,

2,

3,

4,

6}

Affiliation

Kinetic parameters for the [5,6]- to [6,6]-[Li⁺@PCBM]TFSI^– transformation were determined experimentally, revealing a ca. 700-fold faster reaction rate at 423 K than empty PCBM and a 57.4 kJ mol^–1 lower activation energy. The encapsulated Li⁺ can be considered as solvation-free Li⁺, forming a 1:1 complex with the substrate.

中文翻译：

无溶剂的Li + Lewis酸增强反应：[5,6] -Li + @ PCBM到[6,6] -Li + @ PCBM的动力学研究。

通过实验确定了[5,6]-到[6,6]-[Li ⁺ @PCBM] TFSI ^–转化的动力学参数。在423 K下，反应速率比空PCBM快700倍，活化能低57.4 kJ mol ^–1。封装的Li ⁺可以认为是无溶剂化的Li ⁺，与底物形成1：1的络合物。

更新日期：2020-09-20

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