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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 CCSD=FULL/cc-pVQZ

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C4H6 1-Methylcyclopropene rCH 1.085 4.187 3.102
C4H6 1-Methylcyclopropene rCH 1.087 3.398 2.311
C4H6 1-Methylcyclopropene rCC 1.476 2.244 0.768
C4H6 1-Methylcyclopropene rCH 1.087 1.818 0.731
C4H6 1-Methylcyclopropene rCH 1.098 1.767 0.669
C4H6 1-Methylcyclopropene rCH 1.098 1.751 0.653
C4H6 1-Methylcyclopropene rCC 1.515 1.084 -0.431
C4H6 1-Methylcyclopropene rCH 1.070 1.499 0.429
C4H6 1-Methylcyclopropene rCC 1.300 1.502 0.202
NaH sodium hydride rNaH 1.887 1.762 -0.124
Ar2 Argon diatomic rArAr 3.758 3.985 0.227
Be2 Beryllium diatomic rBeBe 2.460 2.620 0.160
S4 Sulfur tetramer rSS 2.155 2.047 -0.108
AlP Aluminum monophosphide rAlP 2.400 2.187 -0.213
AlP Aluminum monophosphide rAlP 2.220 2.056 -0.164
Na2 Sodium diatomic rNaNa 3.079 2.965 -0.114
Mg2 Magnesium diatomic rMgMg 3.891 4.142 0.252
17 molecules.