|   | 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 | |||
| C4H10O | Methyl propyl ether | rCC | 1.530 | 1.105 | -0.425 | 
| C4H10O | Methyl propyl ether | rCH | 1.099 | 1.390 | 0.291 | 
| CaO | Calcium monoxide | rOCa | 1.822 | 2.006 | 0.184 | 
| CuO | Copper Monoxide | rCuO | 1.724 | 1.596 | -0.129 | 
| CH3SO2NH2 | methanesulfonamide | rCN | 1.207 | 1.679 | 0.472 | 
| CuCl | Copper monochloride | rCuCl | 2.051 | 1.946 | -0.105 | 
| He2+ | helium diatomic cation | rHeHe | 1.081 | 1.245 | 0.165 | 
| NaK | Sodium Potassium | rNaK | 3.589 | 3.405 | -0.184 | 
| GaP | Gallium monophosphide | rPGa | 2.110 | 2.397 | 0.287 | 
| GaP | Gallium monophosphide | rPGa | 2.450 | 2.189 | -0.261 | 
| Ne2 | Neon diatomic | rNeNe | 3.100 | 2.341 | -0.759 | 
| ClOOCl | Dichlorine dioxide | rOO | 1.426 | 1.260 | -0.166 | 
| ClOOCl | Dichlorine dioxide | rOCl | 1.704 | 1.868 | 0.164 | 
| Ar2 | Argon diatomic | rArAr | 3.758 | 3.402 | -0.356 | 
| Ar2+ | Argon diatomic cation | rArAr | 2.320 | 2.563 | 0.243 | 
| CuF | Copper monofluoride | rCuF | 1.745 | 1.627 | -0.118 | 
| Al2Cl6 | Aluminum, di-μ-chlorotetrachlorodi- | rAlCl | 2.040 | 2.256 | 0.216 | 
| Al2Cl6 | Aluminum, di-μ-chlorotetrachlorodi- | rAlCl | 2.240 | 2.073 | -0.167 | 
| HSSSH | trisulfane | rHS | 1.344 | 2.071 | 0.727 | 
| CaH | Calcium monohydride | rCaH | 2.003 | 2.117 | 0.114 | 
| CaS | Calcium sulfide | rSCa | 2.318 | 2.452 | 0.134 | 
| AlP | Aluminum monophosphide | rAlP | 2.400 | 2.206 | -0.194 | 
| AlP | Aluminum monophosphide | rAlP | 2.220 | 2.071 | -0.149 | 
| Na2 | Sodium diatomic | rNaNa | 3.079 | 2.970 | -0.109 | 
| Mg2 | Magnesium diatomic | rMgMg | 3.891 | 3.381 | -0.510 | 
| Al2 | Aluminum diatomic | rAlAl | 2.701 | 2.466 | -0.235 |