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Influence of borohydrides pyrolysis conditions on closo-dodecaborane formation

29 November 2024, Version 1
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Pyrolyses of tetraethylammonium and tetrabutylammonium borohydrides were performed. The obtained products were examined by 11B NMR spectroscopy. It was shown that formation of higher boranes is extremely sensitive to the presence of water vapor (2.7-2.8 kPa partial pressure). The pyrolysis conditions of Et4NBH4 and Bu4NBH4 suitable for synthesis of salts containing B3H8- and B12H122- were found and optimized. High-yield syntheses of Bu4NB3H8 and (Bu4N)2B12H12 with were developed.

Keywords

boranes
dodecaborane
octahydrotriborate
pyrolysis
11B NMR spectroscopy

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Version History

Nov 29, 2024 Version 1

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The content is available under CC BY NC ND 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2024-jb3fb
D O I: 10.26434/chemrxiv-2024-jb3fb [opens in a new tab]

Funding

National Research Foundation of Ukraine
0123U104256

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) declare that they have sought and gained approval from the relevant ethics committee/IRB for this research and its publication.

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