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12.2: Bond Energies

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    Table \(\PageIndex{1}\): Bond Energies (kJ/mol)
    Bond Bond Energy Bond Bond Energy Bond Bond Energy
    \(\ce{H-H}\) 436 \(\ce{C-S}\) 260 \(\ce{F-Cl}\) 255
    \(\ce{H-C}\) 415 \(\ce{C-Cl}\) 330 \(\ce{F-Br}\) 235
    \(\ce{H-N}\) 390 \(\ce{C-Br}\) 275 \(\ce{Si-Si}\) 230
    \(\ce{H-O}\) 464 \(\ce{C-I}\) 240 \(\ce{Si-P}\) 215
    \(\ce{H-F}\) 569 \(\ce{N-N}\) 160 \(\ce{Si-S}\) 225
    \(\ce{H-Si}\) 395 \(\ce{N=N}\) 418 \(\ce{Si-Cl}\) 359
    \(\ce{H-P}\) 320 \(\ce{N#N}\) 946 \(\ce{Si-br}\) 290
    \(\ce{H-S}\) 340 \(\ce{N-O}\) 200 \(\ce{Si-I}\) 215
    \(\ce{H-Cl}\) 432 \(\ce{N-F}\) 270 \(\ce{P-P}\) 215
    \(\ce{H-Br}\) 370 \(\ce{N-P}\) 210 \(\ce{P-S}\) 230
    \(\ce{H-I}\) 295 \(\ce{N-Cl}\) 200 \(\ce{P-Cl}\) 330
    \(\ce{C-C}\) 345 \(\ce{N-Br}\) 245 \(\ce{P-Br}\) 270
    \(\ce{C=C}\) 611 \(\ce{O-O}\) 140 \(\ce{P-I}\) 215
    \(\ce{C#C}\) 837 \(\ce{O=O}\) 498 \(\ce{S-S}\) 215
    \(\ce{C-N}\) 290 \(\ce{O-F}\) 160 \(\ce{S-Cl}\) 250
    \(\ce{C=N}\) 615 \(\ce{O-Si}\) 370 \(\ce{S-Br}\) 215
    \(\ce{C#N}\) 891 \(\ce{O-P}\) 350 \(\ce{Cl-Cl}\) 243
    \(\ce{C-O}\) 350 \(\ce{O-Cl}\) 205 \(\ce{Cl-Br}\) 220
    \(\ce{C=O}\) 741 \(\ce{O-I}\) 200 \(\ce{Cl-I}\) 210
    \(\ce{C#O}\) 1080 \(\ce{F-F}\) 160 \(\ce{Br-Br}\) 190
    \(\ce{C-F}\) 439 \(\ce{F-Si}\) 540 \(\ce{Br-I}\) 180
    \(\ce{C-Si}\) 360 \(\ce{F-P}\) 489 \(\ce{I-I}\) 150
    \(\ce{C-P}\) 265 \(\ce{F-S}\) 285    
    Table \(\PageIndex{2}\): Average Bond Lengths and Bond Energies for Some Common Bonds
    Bond Bond Length (Å=0.1 nm) Bond Energy (kJ/mol)
    \(\ce{C-C}\) 1.54 345
    \(\ce{C=C}\) 1.34 611
    \(\ce{C#C}\) 1.20 837
    \(\ce{C-N}\) 1.43 290
    \(\ce{C=N}\) 1.38 615
    \(\ce{C#N}\) 1.16 891
    \(\ce{C-O}\) 1.43 350
    \(\ce{C=O}\) 1.23 741
    \(\ce{C#O}\) 1.13 1080

    12.2: Bond Energies is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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