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. 2017 Dec 6;24(1):5. doi: 10.1007/s00894-017-3530-6

Table 2.

Laplacian bond order for toluene using the B3LYP method

Bond LBO
C1-C2 1.072374
C2-C3 1.510786
C2-C4 1.516674
C3-C5 1.549244
C4-C6 1.544522
C5-C7 1.548748
C6-C7 1.554352
C1-H1 0.781929
C1-H2 0.770005
C1-H3 0.782038
C3-H4 0.796466
C4-H5 0.797323
C5-H6 0.803375
C6-H7 0.802899
C7-H8 0.799741

The bond orders are intuitive: 1 indicates a single bond, 2 a double bond and 1.5 approximates delocalised open shell covalence