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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 B3LYP/cc-pVQZ

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
H2ONH3 Water Ammonia Dimer rNH 2.983 1.975 -1.008
C3H3NO Isoxazole rCH 1.075 1.420 0.345
C4H6 1-Methylcyclopropene rCH 1.085 4.198 3.113
C4H6 1-Methylcyclopropene rCH 1.087 3.413 2.326
C4H6 1-Methylcyclopropene rCC 1.476 2.255 0.779
C4H6 1-Methylcyclopropene rCH 1.087 1.822 0.735
C4H6 1-Methylcyclopropene rCH 1.098 1.772 0.674
C4H6 1-Methylcyclopropene rCH 1.098 1.753 0.655
C4H6 1-Methylcyclopropene rCH 1.070 1.507 0.437
C4H6 1-Methylcyclopropene rCC 1.515 1.089 -0.426
C4H6 1-Methylcyclopropene rCC 1.300 1.507 0.207
Ar2 Argon diatomic rArAr 3.758 5.435 1.677
Ar2+ Argon diatomic cation rArAr 2.320 2.539 0.219
AlP Aluminum monophosphide rAlP 2.400 2.224 -0.176
AlP Aluminum monophosphide rAlP 2.220 2.085 -0.135
15 molecules.