Average Errors in Heat of Formation, per Element

Set	PM7	No. in set	PM6-D3H4	No. in set	PM6	No. in set	PM6-DH2X	No. in set	PM6-DH+	No. in set	RM1	No. in set
1 Hydrogen	7.39	2320	12.23	2320	5.89	2320	11.94	2320	6.49	2320	5.10	1528
3 Lithium	8.42	83	11.89	83	7.73	83	148.46	83	9.16	83	-	-
4 Beryllium	12.59	34	9.30	34	6.49	34	6.84	34	6.57	34	-	-
5 Boron	7.57	116	10.82	116	6.08	116	6.81	116	6.83	116	-	-
6 Carbon	6.70	2155	12.37	2155	5.81	2155	10.46	2155	6.39	2155	5.13	1570
7 Nitrogen	7.33	765	10.91	765	5.96	765	38.63	765	6.62	765	5.82	554
8 Oxygen	8.66	1215	11.10	1215	6.78	1215	83.98	1215	7.38	1215	6.84	825
9 Fluorine	9.99	344	8.80	344	7.66	344	91.50	344	7.80	344	8.21	178
11 Sodium	7.13	38	7.52	38	6.13	38	6.30	38	6.14	38	-	-
12 Magnesium	19.41	65	11.31	65	10.22	65	11.32	65	11.31	65	-	-
13 Aluminum	16.35	72	10.14	72	7.78	72	8.37	72	8.41	72	-	-
14 Silicon	10.26	97	12.37	97	6.67	97	6.95	97	6.98	97	-	-
15 Phosphorus	10.23	97	11.54	97	8.26	97	8.44	97	8.32	97	15.94	94
16 Sulfur	8.21	328	11.55	328	7.57	328	8.22	328	8.23	328	9.11	194
17 Chlorine	9.63	384	8.94	384	7.34	384	266.03	384	7.63	384	15.40	156
19 Potassium	12.74	41	19.25	41	16.27	41	18.05	41	18.41	41	-	-
20 Calcium	21.40	40	12.69	40	11.92	40	13.28	40	13.41	40	-	-
30 Zinc	10.43	53	15.98	53	9.11	53	9.98	53	9.67	53	-	-
31 Gallium	10.55	45	12.37	45	6.64	45	8.04	45	7.83	45	-	-
32 Germanium	13.02	67	14.69	67	9.81	67	10.33	67	10.41	67	-	-
33 Arsenic	12.95	49	10.76	49	7.02	49	7.12	49	7.12	49	-	-
34 Selenium	9.51	23	6.33	23	4.28	23	5.05	23	5.12	23	-	-
35 Bromine	8.79	191	7.89	191	5.75	191	7.01	191	6.43	191	8.28	57
37 Rubidium	9.81	15	13.68	15	14.04	15	14.06	15	14.06	15	-	-
38 Strontium	30.28	38	11.46	38	8.11	38	9.51	38	9.90	38	-	-
48 Cadmium	10.11	37	10.97	37	4.28	37	5.53	37	5.42	37	-	-
49 Indium	11.02	54	11.14	54	7.78	54	8.41	54	8.75	54	-	-
50 Tin	12.53	77	12.70	77	7.15	77	7.81	77	7.97	77	-	-
51 Antimony	16.08	58	9.34	58	5.96	58	6.25	58	6.32	58	-	-
52 Tellurium	12.99	44	11.10	44	8.24	44	8.33	44	9.64	44	-	-
53 Iodine	12.83	173	12.33	173	9.21	173	26.35	173	10.25	173	3.26	59
55 Cesium	28.62	40	25.49	40	23.50	40	23.98	40	24.64	40	-	-
56 Barium	34.08	9	12.62	9	12.49	9	11.72	9	11.71	9	-	-
80 Mercury	7.96	51	8.29	51	6.93	51	7.33	51	7.38	51	-	-
81 Thallium	16.73	45	14.61	45	10.32	45	11.08	45	11.20	45	-	-
82 Lead	21.10	45	15.94	45	11.16	45	11.73	45	11.83	45	-	-
83 Bismuth	10.74	53	9.28	53	7.84	53	8.27	53	8.13	53	-	-
All elements, avoiding double counting	8.53	3143	11.38	3143	6.68	3143	39.69	3143	7.17	3143	6.67	1788
Same as above, but with double counting	8.67	9361	11.62	9361	6.65	9361	37.31	9361	7.26	9361	6.23	5215

Average Unsigned Errors in Predicted Heat of Formation (kcal/mol) (Individual Species)

Average Unsigned Errors in Predicted Heat of Formation (kcal/mol)
(Individual Species)