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Solid state frustrated Lewis pair chemistry.

ABSTRACT: In solution the PCy₃/B(C₆F₅)₃ pair is rapidly deactivated by nucleophilic aromatic substitution. In the solid state deactivation is effectively suppressed and the active frustrated phosphane/borane Lewis pair splits dihydrogen or adds to sulfur dioxide. A variety of phosphane/B(C₆F₅)₃ pairs have been used to carry out active FLP reactions in the solid state. The reactions were analyzed by DFT calculations and by solid state NMR spectroscopy. The solid state dihydrogen splitting reaction was also carried out under near to ambient conditions with suspensions of the non-quenched phosphane/borane mixtures in the fluorous liquid perfluoromethylcyclohexane.

SUBMITTER: Wang L

PROVIDER: S-EPMC5982199 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature

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Solid state frustrated Lewis pair chemistry.

Wang Long L Kehr Gerald G Daniliuc Constantin G CG Brinkkötter Melanie M Wiegand Thomas T Wübker Anna-Lena AL Eckert Hellmut H Liu Lei L Brandenburg Jan Gerit JG Grimme Stefan S Erker Gerhard G

Chemical science 20180423 21

In solution the PCy3/B(C6F5)3 pair is rapidly deactivated by nucleophilic aromatic substitution. In the solid state deactivation is effectively suppressed and the active frustrated phosphane/borane Lewis pair splits dihydrogen or adds to sulfur dioxide. A variety of phosphane/B(C6F5)3 pairs have been used to carry out active FLP reactions in the solid state. The reactions were analyzed by DFT calculations and by solid s ...[more]

PMID: 29910938

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