Table 3. Type of radicals and spin densities of groups 15–16 species.

Compounds	Spin density	Type of radical	Ref.
53a–c	(65–70%) Ccarbene, (20–25%) Ncarbene, 1% P	Monoradical	38a
54a–b, 55	(60–67%) CcAAC, (23–28%) NcAAC, (1–2%) P, (0.1–0.5%) Au	Monoradical	38a
56a–c	73–76% P	Monoradical	38b
57	67% P, 16% N, 10% Ncarbene	Monoradical cation	38c
58	27% P (each), 14% NcAAC (each)	Monoradical cation	38d
59	33% P, 44% P	Monoradical cation	38d
60	40% P, 18% N, 19% NcAAC	Monoradical cation	38e
61	41% As (each)	Monoradical cation	38f
62	90.7% Sb, 4.6% Cl, 3.9% Cl	Monoradical	38g
63a–b	75% CcAAC, 19% NcAAC, 3.6% Si, 5% P	Monoradical	39
64	81% CcAAC, 9% NcAAC, 6% Si (total), 6% P (total)	Monoradical anion	40
65	52% CO (40% O and 12% C), 26% Ncarbene (total), 19% Ncarbene (total)	Monoradical cation	41