|   | 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 | |||
| H2ONH3 | Water Ammonia Dimer | rNH | 2.983 | 2.085 | -0.898 | 
| C4H4N2O2 | Uracil | rNH | 0.836 | 0.995 | 0.159 | 
| C4H4N2O2 | Uracil | rCH | 0.931 | 1.070 | 0.139 | 
| C4H4N2O2 | Uracil | rNH | 0.877 | 0.999 | 0.122 | 
| C4H4N2O2 | Uracil | rCH | 0.957 | 1.073 | 0.116 | 
| C(CH3)3NH2 | 2-Propanamine, 2-methyl- | rNH | 1.048 | 1.464 | 0.416 | 
| C3H7SH | 1-Propanethiol | rSH | 1.336 | 1.124 | -0.212 | 
| C3H3NO | Isoxazole | rCH | 1.075 | 1.428 | 0.353 | 
| C2H4O3 | trioxolane124 | rCN | 1.303 | 2.161 | 0.858 | 
| C4H10O | Methyl propyl ether | rCC | 1.530 | 1.086 | -0.444 | 
| C4H10O | Methyl propyl ether | rCH | 1.099 | 1.391 | 0.292 | 
| CaO | Calcium monoxide | rOCa | 1.822 | 2.042 | 0.220 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.085 | 4.184 | 3.099 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.087 | 3.411 | 2.324 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.476 | 2.245 | 0.769 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.087 | 1.806 | 0.719 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.098 | 1.763 | 0.665 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.098 | 1.750 | 0.652 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.515 | 1.084 | -0.431 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.070 | 1.496 | 0.426 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.300 | 1.495 | 0.195 | 
| CH3SO2NH2 | methanesulfonamide | rCN | 1.207 | 1.650 | 0.443 | 
| KCl | Potassium Chloride | rKCl | 2.667 | 2.771 | 0.104 | 
| FNO | Nitrosyl fluoride | rNF | 1.512 | 1.383 | -0.129 | 
| FNO3 | Fluorine nitrate | rNO | 1.507 | 1.385 | -0.122 | 
| FNO2 | Nitryl fluoride | rNF | 1.467 | 1.344 | -0.123 | 
| CaBr | Calcium monobromide | rCaBr | 2.594 | 2.715 | 0.121 | 
| N2O4 | Dinitrogen tetroxide | rNN | 1.782 | 1.580 | -0.202 | 
| N2O3 | Dinitrogen trioxide | rNN | 1.864 | 1.580 | -0.284 | 
| LiK | Lithium Potassium | rLiK | 3.270 | 3.507 | 0.237 | 
| VO | Vanadium monoxide | rVO | 1.589 | 1.719 | 0.130 | 
| GaP | Gallium monophosphide | rPGa | 2.450 | 2.278 | -0.172 | 
| Ne2 | Neon diatomic | rNeNe | 3.100 | 2.686 | -0.414 | 
| NaLi | lithium sodium | rLiNa | 2.889 | 2.999 | 0.110 | 
| NaO | sodium monoxide | rONa | 2.052 | 1.948 | -0.103 | 
| Ar2 | Argon diatomic | rArAr | 3.758 | 4.527 | 0.769 | 
| Ar2+ | Argon diatomic cation | rArAr | 2.320 | 2.515 | 0.195 | 
| Si2 | Silicon diatomic | rSiSi | 2.246 | 2.143 | -0.103 | 
| SeO3 | selenium trioxide | rSeO | 1.688 | 1.564 | -0.123 | 
| Al2Cl6 | Aluminum, di-μ-chlorotetrachlorodi- | rAlCl | 2.040 | 2.288 | 0.248 | 
| Al2Cl6 | Aluminum, di-μ-chlorotetrachlorodi- | rAlCl | 2.240 | 2.083 | -0.157 | 
| HSSSH | trisulfane | rHS | 1.344 | 2.061 | 0.718 | 
| CrH | Chromium hydride | rHCr | 1.655 | 1.815 | 0.160 | 
| Li2 | Lithium diatomic | rLiLi | 2.673 | 2.807 | 0.134 | 
| Be2 | Beryllium diatomic | rBeBe | 2.460 | 4.615 | 2.155 | 
| CaH | Calcium monohydride | rCaH | 2.003 | 2.124 | 0.121 | 
| CaCl | calcium monochloride | rClCa | 2.437 | 2.583 | 0.146 | 
| S4 | Sulfur tetramer | rSS | 2.155 | 1.988 | -0.167 | 
| CaS | Calcium sulfide | rSCa | 2.318 | 2.482 | 0.164 | 
| AlP | Aluminum monophosphide | rAlP | 2.400 | 2.269 | -0.131 | 
| AlP | Aluminum monophosphide | rAlP | 2.220 | 2.107 | -0.113 | 
| Na2 | Sodium diatomic | rNaNa | 3.079 | 3.189 | 0.110 | 
| K2 | Potassium diatomic | rKK | 3.905 | 4.204 | 0.299 | 
| Mg2 | Magnesium diatomic | rMgMg | 3.891 | 2.524 | -1.366 | 
| Al2 | Aluminum diatomic | rAlAl | 2.701 | 2.539 | -0.162 |