|   | Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology | 
| You are here: Calculated > Geometry > Bad Calculations > Bad Calculated Bond Lengths OR Resources > Bad Calculations > Geometry > Bad Calculated Bond Lengths | |
| Species | Name | Bond type | Bond Length (Å) | ||
|---|---|---|---|---|---|
| Experimental | Calculated | Difference | |||
| H2ONH3 | Water Ammonia Dimer | rNH | 2.983 | 2.052 | -0.931 | 
| C4H4N2O2 | Uracil | rNH | 0.836 | 1.011 | 0.175 | 
| C4H4N2O2 | Uracil | rCH | 0.931 | 1.081 | 0.150 | 
| C4H4N2O2 | Uracil | rNH | 0.877 | 1.015 | 0.138 | 
| C4H4N2O2 | Uracil | rCH | 0.957 | 1.085 | 0.128 | 
| C(CH3)3NH2 | 2-Propanamine, 2-methyl- | rNH | 1.048 | 1.477 | 0.429 | 
| C4H10O | Ethanol, 1,1-dimethyl- | rCH | 1.117 | 2.436 | 1.319 | 
| C4H10O | Ethanol, 1,1-dimethyl- | rCO | 1.446 | 2.183 | 0.737 | 
| C2F4 | Tetrafluoroethylene | rCF | 1.319 | 1.426 | 0.107 | 
| C2Cl4 | Tetrachloroethylene | rCCl | 1.718 | 1.579 | -0.139 | 
| C3H3NO | Isoxazole | rCH | 1.075 | 1.424 | 0.349 | 
| C2H4O3 | trioxolane124 | rCN | 1.303 | 1.418 | 0.115 | 
| CF3CN | Acetonitrile, trifluoro- | rCF | 1.328 | 1.429 | 0.101 | 
| CH3CF3 | Ethane, 1,1,1-trifluoro- | rCF | 1.340 | 1.665 | 0.325 | 
| C4H10O | Methyl propyl ether | rCC | 1.530 | 1.096 | -0.434 | 
| C4H10O | Methyl propyl ether | rCH | 1.099 | 1.418 | 0.319 | 
| CH3SCH2CH3 | Ethane, (methylthio)- | rCS | 1.804 | 1.526 | -0.278 | 
| CH3SCH2CH3 | Ethane, (methylthio)- | rCS | 1.804 | 1.528 | -0.276 | 
| CaO | Calcium monoxide | rOCa | 1.822 | 2.049 | 0.227 | 
| CF3 | Trifluoromethyl radical | rCF | 1.318 | 1.431 | 0.113 | 
| HOCO+ | Hydrocarboxyl cation | rCO | 1.209 | 1.340 | 0.132 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.085 | 4.225 | 3.140 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.087 | 3.429 | 2.342 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.476 | 2.263 | 0.787 | 
| 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 | 1.762 | 0.664 | 
| C4H6 | 1-Methylcyclopropene | rCH | 1.070 | 1.513 | 0.443 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.515 | 1.095 | -0.420 | 
| C4H6 | 1-Methylcyclopropene | rCC | 1.300 | 1.510 | 0.210 | 
| CH3SO2NH2 | methanesulfonamide | rCN | 1.207 | 1.700 | 0.493 | 
| H2SO4 | Sulfuric acid | rOH | 0.970 | 2.889 | 1.919 | 
| PF3 | Phosphorus trifluoride | rFP | 1.561 | 1.684 | 0.123 | 
| SiF4 | Silicon tetrafluoride | rSiF | 1.554 | 1.713 | 0.159 | 
| AsF5 | Arsenic pentafluoride | rAsF | 1.711 | 1.923 | 0.212 | 
| AsF5 | Arsenic pentafluoride | rAsF | 1.656 | 1.833 | 0.177 | 
| CaBr | Calcium monobromide | rCaBr | 2.594 | 2.709 | 0.116 | 
| LiK | Lithium Potassium | rLiK | 3.270 | 3.388 | 0.118 | 
| NO3 | Nitrogen trioxide | rNO | 1.238 | 1.352 | 0.114 | 
| GaP | Gallium monophosphide | rPGa | 2.450 | 2.201 | -0.249 | 
| CaOH | Calcium monohydroxide | rOCa | 1.976 | 2.110 | 0.134 | 
| ArH+ | Argon hydride cation | rArH | 1.292 | 1.441 | 0.149 | 
| Na2Cl2 | Disodium dichloride | rNaCl | 2.584 | 3.251 | 0.667 | 
| ClOOCl | Dichlorine dioxide | rOCl | 1.704 | 1.576 | -0.129 | 
| NaO | sodium monoxide | rONa | 2.052 | 1.858 | -0.194 | 
| Ar2 | Argon diatomic | rArAr | 3.758 | 4.070 | 0.312 | 
| Ar2+ | Argon diatomic cation | rArAr | 2.320 | 2.621 | 0.301 | 
| AlCl | Aluminum monochloride | rAlCl | 2.130 | 2.420 | 0.289 | 
| B2Cl4 | Diboron tetrachloride | rBB | 1.702 | 1.545 | -0.157 | 
| CaF | Calcium monofluoride | rFCa | 1.967 | 2.280 | 0.313 | 
| Al2Cl6 | Aluminum, di-μ-chlorotetrachlorodi- | rAlCl | 2.040 | 2.284 | 0.244 | 
| Al2Cl6 | Aluminum, di-μ-chlorotetrachlorodi- | rAlCl | 2.240 | 2.089 | -0.151 | 
| HSSSH | trisulfane | rHS | 1.344 | 2.078 | 0.735 | 
| Li2+ | lithium diatomic cation | rLiLi | 3.112 | 2.955 | -0.157 | 
| Be2 | Beryllium diatomic | rBeBe | 2.460 | 1.939 | -0.521 | 
| B2 | Boron diatomic | rBB | 1.590 | 1.459 | -0.131 | 
| CaH | Calcium monohydride | rCaH | 2.003 | 2.115 | 0.113 | 
| CaCl | calcium monochloride | rClCa | 2.437 | 2.563 | 0.126 | 
| CaS | Calcium sulfide | rSCa | 2.318 | 2.479 | 0.162 | 
| AlP | Aluminum monophosphide | rAlP | 2.400 | 2.219 | -0.181 | 
| AlP | Aluminum monophosphide | rAlP | 2.220 | 2.083 | -0.137 | 
| K2 | Potassium diatomic | rKK | 3.905 | 4.092 | 0.186 | 
| Mg2 | Magnesium diatomic | rMgMg | 3.891 | 2.683 | -1.208 | 
| Al2 | Aluminum diatomic | rAlAl | 2.701 | 2.516 | -0.185 | 
| CaC | Calcium monocarbide | rCCa | 2.302 | 2.438 | 0.136 |