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All results from a given calculation for CH2(OH)2 (methanediol)

using model chemistry: CISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-190.440073
Energy at 298.15K-190.445470
HF Energy-189.949405
Nuclear repulsion energy82.193691
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CISD/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3974 3677 19.02      
2 A 3151 2916 67.64      
3 A 1606 1486 0.97      
4 A 1473 1363 7.56      
5 A 1275 1180 2.30      
6 A 1124 1040 125.48      
7 A 614 568 122.98      
8 A 434 402 43.61      
9 B 3971 3674 29.33      
10 B 3205 2965 61.16      
11 B 1539 1424 99.77      
12 B 1450 1341 31.74      
13 B 1180 1092 238.71      
14 B 1064 985 19.19      
15 B 430 398 231.85      

Unscaled Zero Point Vibrational Energy (zpe) 13244.4 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 12255.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CISD/6-311G*
ABC
1.40831 0.34792 0.30722

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.529
O2 0.000 1.158 -0.245
O3 0.000 -1.158 -0.245
H4 -0.888 -0.073 1.155
H5 0.888 0.073 1.155
H6 -0.788 1.156 -0.781
H7 0.788 -1.156 -0.781

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.39331.39331.08911.08911.91691.9169
O21.39332.31622.06531.98190.95282.5029
O31.39332.31621.98192.06532.50290.9528
H41.08912.06531.98191.78282.29522.7806
H51.08911.98192.06531.78282.78062.2952
H61.91690.95282.50292.29522.78062.7990
H71.91692.50290.95282.78062.29522.7990

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 108.111 C1 O3 H7 108.111
O2 C1 O3 112.436 O2 C1 H4 112.028
O2 C1 H5 105.295 O3 C1 H4 105.295
O3 C1 H5 112.028 H4 C1 H5 109.875
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability