Wyniki wyszukiwania dla: KATIONY BOROWE

• Phosphinoborinium cation: a synthon for cationic B-P bond systems

  Publikacja

  • K. Kaniewska-Laskowska
  • K. Klimsiak
  • N. Szynkiewicz
  • J. Chojnacki
  • R. Grubba

  - CHEMICAL COMMUNICATIONS - Rok 2022

  Herein, we report access to phosphinoborinium cations via heterolytic cleavage of the boron-bromide bond in bromophosphinoborane. The product of the reaction was isolated as a dimeric dication possessing a planar P2B2 core. Activation of C-H and C-P bonds in the dication led to formation of the borinium-phosphaborene adduct. Reactivity studies revealed that title cation exhibits ambiphilic properties and intramolecular frustrated...

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

  Publikacja

  • K. Kaniewska-Laskowska
  • A. Ordyszewska
  • T. Wojnowski
  • H. Halenka
  • M. Czapla
  • J. Chojnacki
  • R. Grubba

  - DALTON TRANSACTIONS - Rok 2023

  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....

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