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Issue 75, 2014
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Unexpected cluster formation upon hydroboration of a neutral diborene with 9-BBN

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Abstract

The reaction of the neutral, base-stabilised diborenes 1a,b with the well-known hydroboration reagent 9-borabicyclo[3.3.1]nonane (9-BBN) is presented. This leads to the formation of a nonclassical structural motif with a B3 core concomitant with the cleavage of a B–C bond. This compound has been characterised in solution and by X-ray crystallography. According to Wade's rules these rare B3 clusters follow the arachno classification (2n + 6 electrons) and represent doubly base-stabilised B3H5 analogues.

Graphical abstract: Unexpected cluster formation upon hydroboration of a neutral diborene with 9-BBN

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Publication details

The article was received on 12 Jun 2014, accepted on 31 Jul 2014 and first published on 31 Jul 2014


Article type: Communication
DOI: 10.1039/C4CC04476B
Citation: Chem. Commun., 2014,50, 10983-10985
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    Unexpected cluster formation upon hydroboration of a neutral diborene with 9-BBN

    H. Braunschweig and C. Hörl, Chem. Commun., 2014, 50, 10983
    DOI: 10.1039/C4CC04476B

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