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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 MP3/3-21G*

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
Na2 Sodium diatomic rNaNa 3.079 3.183 0.104
N2 Nitrogen diatomic rNN 1.213 1.109 -0.104
N2 Nitrogen diatomic rNN 1.213 1.109 -0.104
O2 Oxygen diatomic rOO 1.208 1.300 0.092
LiH Lithium Hydride rLiH 1.595 1.660 0.065
F2 Fluorine diatomic rFF 1.412 1.467 0.055
6 molecules.