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CHEMISTRY-A EUROPEAN JOURNAL
Volume -, Issue -, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202301270
Keywords
borenium; carborane; NHC; radical; structure elucidation
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In this article, we presented the 3D analogues of N-heterocyclic carbene (NHC)-stabilized 9-borafluorenium and 9-borafluorene radical. The radical was thoroughly characterized using cyclic voltammetry, UV-Vis absorption spectroscopy, electron paramagnetic resonance, and single-crystal X-ray diffraction analyses. The boron-centered radical nature of 9-borafluorene radical was confirmed through DFT calculations and EPR analysis.
In this contribution, we reported the three-dimensional (3D) analogues of N-heterocyclic carbene (NHC)-stabilized 9-borafluorenium and 9-borafluorene radical. The radical was fully characterized by cyclic voltammetry (CV), UV-Vis absorption spectroscopy, electron paramagnetic resonance (EPR) and single-crystal X-ray diffraction analyses. The distinct boron-centered radical character of 9-borafluorene radical was corroborated by DFT calculations and EPR analysis.
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