An isolable boron-centered radical anion stabilized by a carbazole moiety†
Abstract
The isolation of a stable persistent carbazole-stabilized boron-centered monoradical anion 1˙−, which has a high spin density at the B atom, has been reported. It is characterized using the crystal structure and UV-vis absorption spectrum, as well as electron paramagnetic resonance spectroscopy. Interestingly, the B–N bond was activated by the boron-centered radical anion 1˙−, which had not been reported before.