Table 2. Group 14 element containing radicals and the distribution of spin density.

Compounds	Spin density	Type of radical	Ref.
23	Not given	Monoradical	21
24	40% CcAAC, 28% O, 24% NcAAC, 6% C	Monoradical	22a
25	Not given	Disbiradical	22a
26a	42% CcAAC, 28% O	Monoradical	22b
26b	39% CcAAC, 29% O	Monoradical	22b
26c	37% CcAAC, 31% O	Monoradical	22b
26d	31% CcAAC, 33% O	Monoradical	22b
27	19% CcAAC, 36% O	Monoradical	22b
28	Not given	Dis-triradical	22a
29	Not given	Triplet	22c
30	Not given	Triplet	22c
31	41.1% CcAAC, 21.1% NcAAC, 25% (C4F4N)	Monoradical	22d
32	33% CcAAC, 23% NcAAC, 10% CNHC	Monoradical cation	22e
33	25% CcAAC, 20% NcAAC, 9% CNHC	Monoradical cation	22e
34	Not given	Monoradical cation	23
35a	60% on C4 unit, 40% NcAAC	Monoradical cation	24
35b	44% NcAAC, 24% CcAAC, 31% CcAAC	Monoradical cation	25
36c	43% CcAAC, 15% NcAAC, 39% CtBu, 2.5% Cment	Monoradical	26b
36d	45% CcAAC, 17% NcAAC, 38% CCPh3	Monoradical	26b
37a	Not given	Biradicaloid	26c
37b–c	Not given	Disbiradical	26c
38a	58% cAAC, 38% linker	Monoradical cation	26d
38b	50% cAAC, 50% linker	Monoradical cation	26d
38c	52% cAAC, 48% linker	Monoradical cation	26d
39	(37–45%) Ccarbene, (8–11%) Ncarbene, (19–23%) Cortho, (19–29%) Cpara	Monoradical	26e
40	Not given	Biradicaloid	26f and g
41	Not given	Disbiradical	27
42	Not given	Disbiradical and OSS	28
43	90% CcAAC, 10% NcAAC	Disbiradical	29
44	65% CcAAC, 18% NcAAC	OSS	30
45a–b	71% CcAAC, 22% NcAAC, 6% Si	Monoradical	31
45c	66% CcAAC, 25% NcAAC	Monoradical	30
46	80% CcAAC, 16% NcAAC, 5% Si	Monoradical	32
47	Not given	CSS biradicaloid	33
48	Not given	Monoradical anion	35
49	Not given	OSS	36
50	95% CcAAC, 5% NcAAC	Disbiradical	29
51	92% CcAAC, 8% NcAAC	Disbiradical	29
52	52% Si	Monoradical cation	37