IV
.
D
.7. (
XVIII
.
A
.2.)
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 ROMP2/6-31+G**
Species
Name
Bond type
Bond Length (Å)
Experimental
Calculated
Difference
CaCl
calcium monochloride
rClCa
2.437
2.572
0.135
C
2
Carbon diatomic
rCC
1.243
1.328
0.086
B
2
Boron diatomic
rBB
1.590
1.526
-0.064
3 molecules.