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

using model chemistry: MP4=FULL/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/cc-pVDZ
 hartrees
Energy at 0K-190.486968
Energy at 298.15K-190.492265
HF Energy-189.922668
Nuclear repulsion energy81.316290
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/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 3816 3683        
2 A 3044 2938        
3 A 1535 1481        
4 A 1419 1369        
5 A 1222 1180        
6 A 1058 1021        
7 A 579 559        
8 A 396 382        
9 B 3816 3683        
10 B 3099 2991        
11 B 1470 1418        
12 B 1388 1339        
13 B 1126 1087        
14 B 1027 991        
15 B 411 397        

Unscaled Zero Point Vibrational Energy (zpe) 12702.6 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 12259.3 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/cc-pVDZ
ABC
1.38027 0.34068 0.30124

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.531
O2 0.000 1.173 -0.248
O3 0.000 -1.173 -0.248
H4 -0.898 -0.081 1.173
H5 0.898 0.081 1.173
H6 -0.804 1.125 -0.785
H7 0.804 -1.125 -0.785

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40751.40751.10721.10721.90921.9092
O21.40752.34522.09652.00430.96892.4930
O31.40752.34522.00432.09652.49300.9689
H41.10722.09652.00431.80412.30152.7974
H51.10722.00432.09651.80412.79742.3015
H61.90920.96892.49302.30152.79742.7659
H71.90922.49300.96892.79742.30152.7659

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 105.425 C1 O3 H7 105.425
O2 C1 O3 112.845 O2 C1 H4 112.419
O2 C1 H5 105.071 O3 C1 H4 105.071
O3 C1 H5 112.419 H4 C1 H5 109.120
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability