|   | 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 | |||
| GaP | Gallium monophosphide | rPGa | 2.450 | 2.222 | -0.228 | 
| Ar2 | Argon diatomic | rArAr | 3.758 | 4.000 | 0.242 | 
| Ar2+ | Argon diatomic cation | rArAr | 2.320 | 2.423 | 0.103 | 
| Be2 | Beryllium diatomic | rBeBe | 2.460 | 2.323 | -0.137 |