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Bad Calculated Bond Lengths

List of molecules with calculated bond lengths that differ by more than 0.050 Å from experimental bond lengths.

Calculated at QCISD/6-311+G(3df,2p)

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C3H3NO Isoxazole rCH 1.075 1.426 0.351
C4H10O Methyl propyl ether rCC 1.530 1.092 -0.438
C4H10O Methyl propyl ether rCH 1.099 1.405 0.306
C4H6 1-Methylcyclopropene rCH 1.085 4.209 3.124
C4H6 1-Methylcyclopropene rCH 1.087 3.416 2.329
C4H6 1-Methylcyclopropene rCC 1.476 2.256 0.780
C4H6 1-Methylcyclopropene rCH 1.087 1.826 0.739
C4H6 1-Methylcyclopropene rCH 1.098 1.774 0.676
C4H6 1-Methylcyclopropene rCH 1.098 1.758 0.660
C4H6 1-Methylcyclopropene rCH 1.070 1.508 0.438
C4H6 1-Methylcyclopropene rCC 1.515 1.089 -0.426
C4H6 1-Methylcyclopropene rCC 1.300 1.511 0.211
N2O4 Dinitrogen tetroxide rNN 1.782 1.677 -0.105
Ar2 Argon diatomic rArAr 3.758 3.906 0.148
Na2 Sodium diatomic rNaNa 3.079 3.182 0.103
15 molecules.