Standard Bond Energies (kcal/mol)
Single Bonds	DH°^*	Single Bonds	DH°^*	Multiple Bonds	DH°^*
H-H	104.2	B-F	150	C=C	146
C-C	83	B-O	125	N=N	109
N-N	38.4	C-N	73	O=O	119
O-O	35	N-CO	86	C=N	147
F-F	36.6	C-O	85.5	C=O	192
Si-Si	52	O-CO	110	C=S	138
P-P	50	C-S	65	N=O	143
S-S	54	C-F	116	P=O	110
Cl-Cl	58	C-Cl	81	P=S	70
Br-Br	46	C-Br	68	S=O	128
I-I	36.	C-I	51	P=P	84
H-C	99	C-B	90	P@P	117
H-N	93	C-Si	83	C@O	258
H-O	111	C-P	70	C@C	200
H-F	135	N-O	55	N@N	226
H-Cl	103	S-O	87	C@N	213
H-Br	87.5	Si-F	135
H-I	71	Si-Cl	90
H-B	90	Si-O	110
H-S	81	P-Cl	79
H-Si	75	P-Br	65
H-P	77	P-O	90