|   | Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology | 
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| Species | Name | Bond type | Bond Length (Å) | ||
|---|---|---|---|---|---|
| Experimental | Calculated | Difference | |||
| C3H3NO | Isoxazole | rCH | 1.075 | 1.422 | 0.347 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.085 | 4.217 | 3.132 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.087 | 3.414 | 2.327 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.476 | 2.260 | 0.784 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.087 | 1.829 | 0.742 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.098 | 1.781 | 0.683 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.098 | 1.760 | 0.662 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.070 | 1.505 | 0.435 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.515 | 1.095 | -0.420 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.300 | 1.506 | 0.206 | 
| He2+ | helium diatomic cation | rHeHe | 1.081 | 1.188 | 0.107 | 
| N2O4 | Dinitrogen tetroxide | rNN | 1.782 | 1.900 | 0.118 | 
| Ar2 | Argon diatomic | rArAr | 3.758 | 3.963 | 0.205 |