Table 2. RC4-Derived Calculated (DLPNO-CCSD(T)/def2TZVPPecp) RSE Values (kcal/mol) for Compounds 1^El and 2^Pn.

1El				2Pn
group 13	group 14	group 15	group 16	group 15
B 31.15 (68.836c)	C 53.97 (53.2,35a 55.0,35b 55.5,35c 54.1,35d 55.7,35e 54.1,35f 54.1,35g 56.037)	N 71.02 (77.337)	Ob 76.10 [71.31]a (74.9,35f 82.437)	N 41.19 (43.9,37 41.938)
Al 42.09	Si 41.94 (45.5,35b 34.5,35cc 49.039)	P 38.03 (39.037)	S 51.51	Pb 32.57 [31.38]a (34.337)
Ga 45.46	Ge 46.62 (44.412)	As 35.89	Se 45.25	Asb 32.73 [32.95]a
Inb 46.22 [46.29]a	Sn 45.01	Sb 30.95	Te 38.15	Sbb 30.91 [29.71]a
		Bi 26.92	Po 33.17	Bib 28.12 [28.11]a

^aValues calculated at the CASSCF(n,6)/MRACPF/def2-SVPD level are presented in square brackets (see the Supporting Information for the specific number of active orbitals used, n).

^bPseudocyclic structures.

^cSee text.