Matrix Isolation of the Arsinoborene F<sub>2</sub>B–As═BF with an As═B Double Bond Character
We report on the generation of F<sub>2</sub>B-As═BF, an arsinoborene (boranylidenearsane) with a genuine As═B double bond, where both the As and B atoms are two-coordinate. It was obtained from the reaction of AsF<sub>3</sub> with laser-ablated boron atoms under cryogenic conditions in neon and argon matrices. In addition, the single-bonded arsenic-boron radicals FB-AsF<sub>2</sub> and F<sub>2</sub>B-AsF were characterized. These species were identified by infrared spectroscopy and <sup>10/11</sup>B isotope substitution in conjunction with quantum-chemical calculations at the B3LYP and CCSD(T) levels of theory. The isomerization from FB-AsF<sub>2</sub> to F<sub>2</sub>B-AsF can be triggered by irradiation with ultraviolet light (λ = 275 nm) in argon. This discovery of the arsinoborene F<sub>2</sub>B-As═BF further extends the series of multiple-bonded systems between heavy main group elements and boron.
Authors
- Mei Wen (ORCID: https://orcid.org/0009-0004-0366-5267)
- Sebastian Riedel (ORCID: https://orcid.org/0000-0003-4552-5719)
- Robert Medel (ORCID: https://orcid.org/0000-0001-6134-0437)
- Pavel V. Zasimov (ORCID: https://orcid.org/0000-0003-0337-5927)
Institutions
- Freie Universität Berlin (DE)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2025-03-06
- DOI
- https://doi.org/10.1021/acs.inorgchem.4c05418
- Primary Topic
- Synthesis and characterization of novel inorganic/organometallic compounds
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Deutsche Forschungsgemeinschaft
- China Scholarship Council
- European Research Council