Isolation of base stabilized fluoroborylene and its radical cation
2019 | journal article. A publication with affiliation to the University of Göttingen.
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Isolation of base stabilized fluoroborylene and its radical cation
Sarkar, S. K.; Siddiqui, M. M.; Kundu, S.; Ghosh, M.; Kretsch, J.; Stollberg, P. & Herbst-Irmer, R. et al. (2019)
Dalton Transactions, 48(24) pp. 8551-8555. DOI: https://doi.org/10.1039/C9DT01899A
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Details
- Authors
- Sarkar, Samir Kumar; Siddiqui, Mujahuddin M.; Kundu, Subrata; Ghosh, Munmun; Kretsch, Johannes; Stollberg, Peter; Herbst-Irmer, Regine; Stalke, Dietmar; Stückl, A. Claudia; Roesky, Herbert W.; Schwederski, Brigitte; Kaim, Wolfgang; Ghorai, Sagar; Jemmis, Eluvathingal D.
- Abstract
- The synthesis and characterization of metal-free fluoroborylene [(Me-cAAC) 2 BF] ( 1 ) is reported.
Herein, we report the synthesis and characterization of the metal free low valent fluoroborylene [(Me-cAAC) 2 BF] ( 1 ) stabilized by cyclic (alkyl)(amino) carbene (cAAC). The fluoroborylene 1 is obtained by the reductive defluorination of Me-cAAC:BF 3 with 2.0 equivalents of KC 8 in the presence of 1.0 equivalent of Me-cAAC. Due to its highly electron rich nature, 1 underwent one-electron oxidation with 1.0 equivalent of lithium tetrakis(pentafluorophenyl)borate [LiB(C 6 F 5 ) 4 ] to form the radical cation [(Me-cAAC) 2 BF]˙ + [B(C 6 F 5 ) 4 ] − ( 2 ). DFT studies suggested that the lone pair of electrons is localized on the boron atom in 1 , which explains its unprecedented reactivity. Both compounds 1 and 2 were characterized by X-ray crystallography. The radical cation 2 was studied by EPR spectroscopy. - Issue Date
- 2019
- Journal
- Dalton Transactions
- ISSN
- 1477-9226
- eISSN
- 1477-9234
- ISSN
- 1477-9226
- eISSN
- 1477-9234
- Language
- English
