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

using model chemistry: MP4=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP4=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-190.548657
Energy at 298.15K-190.553849
HF Energy-189.943116
Nuclear repulsion energy80.730717
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 MP4=FULL/aug-cc-pVDZ
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 3783 3689        
2 A 3059 2984        
3 A 1512 1475        
4 A 1385 1350        
5 A 1198 1168        
6 A 1022 996        
7 A 546 533        
8 A 372 362        
9 B 3784 3690        
10 B 3121 3044        
11 B 1436 1400        
12 B 1359 1325        
13 B 1059 1033        
14 B 1002 977        
15 B 373 364        

Unscaled Zero Point Vibrational Energy (zpe) 12504.4 cm-1
Scaled (by 0.9752) Zero Point Vibrational Energy (zpe) 12194.3 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 MP4=FULL/aug-cc-pVDZ
ABC
1.36707 0.33418 0.29586

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.538
O2 0.000 1.182 -0.250
O3 0.000 -1.182 -0.250
H4 -0.903 -0.076 1.167
H5 0.903 0.076 1.167
H6 -0.811 1.172 -0.780
H7 0.811 -1.172 -0.780

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.42061.42061.10321.10321.94111.9411
O21.42062.36412.09952.01160.96902.5456
O31.42062.36412.01162.09952.54560.9690
H41.10322.09952.01161.81192.31472.8160
H51.10322.01162.09951.81192.81602.3147
H61.94110.96902.54562.31472.81602.8508
H71.94112.54560.96902.81602.31472.8508

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.127 C1 O3 H7 107.127
O2 C1 O3 112.625 O2 C1 H4 111.971
O2 C1 H5 105.004 O3 C1 H4 105.004
O3 C1 H5 111.971 H4 C1 H5 110.409
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability