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

using model chemistry: MP2=FULL/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 MP2=FULL/6-311G*
 hartrees
Energy at 0K-190.533275
Energy at 298.15K-190.538646
HF Energy-189.948193
Nuclear repulsion energy81.717509
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 MP2=FULL/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 3844 3641 19.26      
2 A 3105 2941 64.48      
3 A 1573 1490 0.58      
4 A 1437 1361 5.69      
5 A 1247 1181 3.17      
6 A 1081 1024 117.94      
7 A 604 572 121.49      
8 A 427 404 35.02      
9 B 3843 3639 28.97      
10 B 3170 3002 54.70      
11 B 1501 1422 78.34      
12 B 1412 1337 26.97      
13 B 1128 1068 246.89      
14 B 1044 988 13.25      
15 B 440 417 233.53      

Unscaled Zero Point Vibrational Energy (zpe) 12926.5 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 12242.7 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 MP2=FULL/6-311G*
ABC
1.39858 0.34315 0.30353

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.531
O2 0.000 1.167 -0.246
O3 0.000 -1.167 -0.246
H4 -0.892 -0.080 1.156
H5 0.892 0.080 1.156
H6 -0.798 1.153 -0.782
H7 0.798 -1.153 -0.782

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40171.40171.09261.09261.92061.9206
O21.40172.33352.07771.98570.96132.5107
O31.40172.33351.98572.07772.51070.9613
H41.09262.07771.98571.79192.29892.7863
H51.09261.98572.07771.79192.78632.2989
H61.92060.96132.51072.29892.78632.8037
H71.92062.51070.96132.78632.29892.8037

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.265 C1 O3 H7 107.265
O2 C1 O3 112.688 O2 C1 H4 112.225
O2 C1 H5 104.840 O3 C1 H4 104.840
O3 C1 H5 112.225 H4 C1 H5 110.176
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability