Fig. 1
From: From stable Sb- and Bi-centered radicals to a compound with a Ga=Sb double bond

Sb- and Bi-centered radicals. Persistent radicals (a, b), which have been identified in solution by electron paramagnetic resonance (EPR), and stable radicals of the heaviest group 15 elements (c–e), whose solid-state structures were determined by single-crystal X-ray diffraction