Publications Repository - Gdańsk University of Technology

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·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.

Authors

• dr inż. Kinga Kaniewska-Laskowska link open in new tab ,
• dr inż. Anna Ordyszewska link open in new tab ,
• Tomasz Wojnowski link open in new tab ,
• Hanna Halenka link open in new tab ,
• Marcin Czapla,
• prof. dr hab. inż. Jarosław Chojnacki link open in new tab ,
• dr hab. inż. Rafał Grubba link open in new tab