Phosphinoborenium cations stabilized by N-heterocyclic carbenes: synthesis, structure, and reactivity

被引：2

作者：

Kaniewska-Laskowska, Kinga ^{[1
,2
]}

Ordyszewska, Anna ^{[1
,2
]}

Wojnowski, Tomasz ^{[1
,2
]}

Halenka, Hanna ^{[1
,2
]}

Czapla, Marcin ^{[3
]}

Chojnacki, Jaroslaw ^{[1
,2
]}

Grubba, Rafal ^{[1
,2
]}

机构：

[1] Gdansk Univ Technol, Fac Chem, Dept Inorgan Chem, Narutowicza 11-12, PL-80233 Gdansk, Poland

[2] Gdansk Univ Technol, Adv Mat Ctr, Narutowicza 11-12, PL-80233 Gdansk, Poland

[3] Univ Gdansk, Fac Chem, Dept Theoret Chem, Lab Quantum Chem, Wita Stwosza 63, PL-80308 Gdansk, Poland

来源：

DALTON TRANSACTIONS | 2023年 / 52卷 / 43期

关键词：

BORENIUM CATIONS; LEWIS-ACID; ACTIVATION; DIHYDROGEN; IONS; HYDROBORATION; COMPLEXES; BORINIUM; HYDROGEN; BORANE;

D O I：

10.1039/d3dt03090c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Phosphinoborenium cations stabilized by N-heterocyclic carbenes (NHCs) were synthesized via the reaction of bromo(phosphino)boranes with NHCs. Their structures were investigated by heteronuclear magnetic resonance spectroscopy, X-ray diffraction, and density functional theory calculations. They possess a planar trigonal boron center directly bonded with the pyramidal phosphanyl group (PR2) and can be treated as cationic phosphinoboranes. The reactivity of the selected NHC-phosphinoborenium cation was tested toward AuCl<middle dot>SMe2 and Ph2PCl. In both reactions, the titled compound acted as a phosphido group donor under heterolytic cleavage of the P-B bond. Control experiments with parent phosphinoborane emphasized differences between the reactivity of low-coordinate neutral and cationic species with P-B functionality.

引用

页码：16061 / 16066

页数：6

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