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Quenched gas-phase reactions of tetraborane(10), B4H10, with substituted alkynes: new nido-dicarbapentaboranes and arachno-monocarbapentaboranes

Fox, Mark A.; Greatrex, Robert; Nikrahi, Alireza

Quenched gas-phase reactions of tetraborane(10), B4H10, with substituted alkynes: new nido-dicarbapentaboranes and arachno-monocarbapentaboranes Thumbnail


Authors

Robert Greatrex

Alireza Nikrahi



Abstract

New alkyl derivatives of the nido-dicarbapentaborane, 1,2-C2B3H7, and arachno-carbapentaborane, 1-CB4H10, have been identified as the main volatile carbaborane products in quenched gas-phase reactions of tetraborane(10), B4H10, with alkyl-substituted ethynes RC[triple bond, length as m-dash]CR′ (R = Me, Et, nPr or tBu, R′ = H; R = Me or Et, R′ = Me). The gaseous mixtures were heated at 70 °C, and monitored by gas-phase mass spectrometry. Each reaction was quenched when the ethyne was used up. The quenched gas-phase reaction of B4H10 and Me3SiC[triple bond, length as m-dash]CH gave a single volatile carbaborane product, 1-Me3Si-1,2-C2B3H6.

Citation

Fox, M. A., Greatrex, R., & Nikrahi, A. (2008). Quenched gas-phase reactions of tetraborane(10), B4H10, with substituted alkynes: new nido-dicarbapentaboranes and arachno-monocarbapentaboranes. Dalton Transactions, 2008(5), 676-684. https://doi.org/10.1039/b715105e

Journal Article Type Article
Acceptance Date Oct 30, 2007
Publication Date Jan 1, 2008
Deposit Date Dec 14, 2011
Publicly Available Date Mar 28, 2024
Journal Dalton Transactions
Print ISSN 1477-9226
Electronic ISSN 1477-9234
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 2008
Issue 5
Pages 676-684
DOI https://doi.org/10.1039/b715105e

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