Exhaustive Cyanation of the Dodecaborate Dianion: Synthesis, Characterization, and X‑ray Crystal Structure of [B12(CN)12]2

The percyanated dodecaborate anion [B12(CN)12]2– was prepared by reacting [B12I12]2– with CuCN in the presence of a palladium catalyst at elevated pressure and temperature in a microwave reactor. The fully cyanated cluster was isolated as a tetraethylammonium salt in yields of up to 39% and characte...

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Bibliographic Details
Published in:Inorganic chemistry 2020-01, Vol.59 (1), p.189-192
Main Authors: Kamin, Ashlyn A., Juhasz, Marcus A.
Format: Article
Language:English
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Summary:The percyanated dodecaborate anion [B12(CN)12]2– was prepared by reacting [B12I12]2– with CuCN in the presence of a palladium catalyst at elevated pressure and temperature in a microwave reactor. The fully cyanated cluster was isolated as a tetraethylammonium salt in yields of up to 39% and characterized by NMR and IR spectroscopy and mass spectrometry. The crystal structure of a copper complex of the percyanated anion, (CH3CN)3Cu­[μ-B12(CN)12]­Cu­(NCCH3)3, was determined by single-crystal X-ray diffraction.
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.9b03037