|   | 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 | 1.428 | 0.353 | 
| C4H10O | Methyl propyl ether | rCC | 1.530 | 1.107 | -0.423 | 
| C4H10O | Methyl propyl ether | rCH | 1.099 | 1.414 | 0.315 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.085 | 4.252 | 3.167 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.087 | 3.434 | 2.347 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.476 | 2.277 | 0.801 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.087 | 1.848 | 0.761 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.098 | 1.797 | 0.699 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.098 | 1.774 | 0.676 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.070 | 1.513 | 0.443 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.515 | 1.107 | -0.408 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.300 | 1.513 | 0.213 | 
| CH3SO2NH2 | methanesulfonamide | rCN | 1.207 | 1.743 | 0.537 | 
| He2+ | helium diatomic cation | rHeHe | 1.081 | 1.187 | 0.107 | 
| N2O4 | Dinitrogen tetroxide | rNN | 1.782 | 1.891 | 0.109 | 
| Ar2 | Argon diatomic | rArAr | 3.758 | 3.896 | 0.138 | 
| FSN | Thiazyl fluoride | rFS | 1.643 | 1.749 | 0.106 | 
| S4 | Sulfur tetramer | rSS | 2.155 | 2.488 | 0.333 |