Single-bond lengths (in Å)
H
C
N
O
F
Si
P
Cl
Br
I
0.74
1.10
0.98
0.94
0.92
1.45
1.38
1.32
1.27
1.42
1.61
1.54
1.47
1.43
1.41
1.94
1.87
1.81
1.76
1.91
2.10
1.40
1.36
1.34
1.80
1.74
1.69
1.84
2.03
1.30
1.83
1.70
1.65
1.99
1.28
1.68
1.63
1.78
1.97
2.34
2.27
2.21
2.16
2.31
2.50
2.20
2.14
2.09
2.24
2.43
2.08
2.18
2.37
2.00
2.13
2.32
2.28
2.47
2.66
Multi-bond lengths (in Å)
C=C
C=N
C=O
1.22
N=O
1.15
C≡C
1.21
C≡N
C≡O
1.13
N≡O
1.08
Average single bond dissociation energies (in kJ mol–1)
436
413
391
463
565
328
322
347
432
366
299
346
305
358
485
–
272
339
285
213
163
201
283
192
146
452
335
218
155
490
284
253
249
278
222
293
381
310
234
326
184
226
255
242
216
208
193
175
151
Average multi-bond dissociation energies (in kJ mol–1)
N=N
418
N≡N
945
615
887
O=O (in O2)
498
610
835
745
C=O (in CO2)
83
1046