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

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 c...

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Bibliographic Details
Published in:Organic letters 2020-09, Vol.22 (18), p.7239-7243
Main Authors: Ma, Yue, Ueno, Hiroshi, Okada, Hiroshi, Manzhos, Sergei, Matsuo, Yutaka
Format: Article
Language:English
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Summary: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.
ISSN:1523-7060
1523-7052
DOI:10.1021/acs.orglett.0c02570