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Reductive Dehydrocoupling of Diphenyltin Dihydride with LiAlH4: Selective Synthesis and Structures of the First Bicyclo[2.2.1]heptastannane-1,4-diide and Bicyclo[2.2.2]octastannane-1,4-diide 

Abstract

The reaction of diphenyltin dihydride with LiAlH4 gives access to a set of charged tin cages as their lithium salts. Variation in the ratio of reactants provides access to a perstannabicyclooctane dianion and a perstannanorbornane as the di- and monoanions. These compounds can be synthesised selectively by careful stoichiometric control and have been characterised by single crystal X-ray crystallography, NMR and UV-vis spectroscopy. Computational exploration of the electronic structures of these compounds was undertaken and, in agreement with structural and spectroscopic features, indicated significant σ-delocalisation in the tin skeletons.

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Publication details

The article was received on 11 Oct 2019, accepted on 28 Nov 2019 and first published on 29 Nov 2019


Article type: Communication
DOI: 10.1039/C9CC07976A
Chem. Commun., 2019, Accepted Manuscript
  • Open access: Creative Commons BY-NC license
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    Reductive Dehydrocoupling of Diphenyltin Dihydride with LiAlH4: Selective Synthesis and Structures of the First Bicyclo[2.2.1]heptastannane-1,4-diide and Bicyclo[2.2.2]octastannane-1,4-diide

    B. Steller, R. Fischer, M. Flock, M. Hill, D. Liptrot, C. L. McMullin, N. A. Rajabi, K. Tiefling and A. S. Wilson, Chem. Commun., 2019, Accepted Manuscript , DOI: 10.1039/C9CC07976A

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