Cleavage of the N≡N Triple Bond and Unpredicted Formation of the Cyclic 1,3-Diaza-2,4-Diborete (FB)(2) N(2) from N(2) and Fluoroborylene BF.
Cleavage of the N≡N Triple Bond and Unpredicted Formation of the Cyclic 1,3-Diaza-2,4-Diborete (FB)(2) N(2) from N(2) and Fluoroborylene BF.
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N N 三键的断裂以及 N-2 和氟硼烯 BF 意外形成环状 1,3-二氮杂-2,4-二硼酸 (FB)(2)N-2
DOI:
10.1002/anie.202106984
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发表时间:
2021-07-26
期刊:
影响因子:
--
通讯作者:
Riedel S
中科院分区:
文献类型:
--
作者:
Xu B;Beckers H;Ye H;Lu Y;Cheng J;Wang X;Riedel S
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(η 2‐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. The four‐membered heterocycle FB(μ‐N)2BF is obtained from fluoroborylene, FB, and N2. It shows a complete cleavage of the N2 triple bond and a delocalized aromatic two‐electron π‐bond conjugated with the exo‐cyclic fluorine π lone pairs, indicating the importance of fluorine‐specific interactions.
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影响因子:
3.9
作者:
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通讯作者:
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