Cleavage of the N≡N Triple Bond and Unpredicted Formation of the Cyclic 1,3‐Diaza‐2,4‐Diborete (FB)2N2 from N2 and Fluoroborylene BF.
- Resource Type
- Article
- Authors
- Xu, Bing; Beckers, Helmut; Ye, Haoyu; Lu, Yan; Cheng, Juanjuan; Wang, Xuefeng; Riedel, Sebastian
- Source
- Angewandte Chemie. 7/26/2021, Vol. 133 Issue 31, p17342-17347. 6p.
- Subject
- *SCISSION (Chemistry)
*INFRARED spectra
*FLUORINE
- Language
- ISSN
- 0044-8249
A complete cleavage of the triple bond of N2 by fluoroborylene (:BF) was achieved in a low‐temperature N2 matrix by the formation of the four‐membered heterocycle FB(μ‐N)2BF, which lacks a trans‐annular N−N bond. Additionally, the linear complex FB=N−N=BF and cyclic FB(η2‐N2) were formed. These novel species were characterized by their matrix infrared spectra and quantum‐chemical calculations. The puckered four‐membered‐ring B2N2 complex shows a delocalized aromatic two‐electron π‐system in conjugation with the exo‐cyclic fluorine π lone pairs. This work may contribute to a rational design of catalysts based on borylene for artificial dinitrogen activation. [ABSTRACT FROM AUTHOR]