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

using model chemistry: CCD/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 CCD/cc-pVDZ
 hartrees
Energy at 0K-190.464583
Energy at 298.15K-190.469905
HF Energy-189.923456
Nuclear repulsion energy81.551950
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 CCD/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 3865 3697 21.51      
2 A 3065 2932 71.77      
3 A 1547 1480 2.71      
4 A 1434 1372 4.93      
5 A 1237 1184 0.51      
6 A 1086 1039 107.45      
7 A 587 562 86.18      
8 A 407 389 39.04      
9 B 3864 3697 36.80      
10 B 3116 2981 67.45      
11 B 1488 1423 99.52      
12 B 1406 1345 18.12      
13 B 1162 1111 199.48      
14 B 1037 992 20.72      
15 B 408 391 179.64      

Unscaled Zero Point Vibrational Energy (zpe) 12854.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 12297.5 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 CCD/cc-pVDZ
ABC
1.38401 0.34329 0.30330

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.530
O2 0.000 1.167 -0.247
O3 0.000 -1.167 -0.247
H4 -0.897 -0.076 1.172
H5 0.897 0.076 1.172
H6 -0.802 1.130 -0.785
H7 0.802 -1.130 -0.785

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40251.40251.10621.10621.91061.9106
O21.40252.33492.08992.00270.96622.4924
O31.40252.33492.00272.08992.49240.9662
H41.10622.08992.00271.80132.30162.7982
H51.10622.00272.08991.80132.79822.3016
H61.91060.96622.49242.30162.79822.7715
H71.91062.49240.96622.79822.30162.7715

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 106.062 C1 O3 H7 106.062
O2 C1 O3 112.689 O2 C1 H4 112.289
O2 C1 H5 105.321 O3 C1 H4 105.321
O3 C1 H5 112.289 H4 C1 H5 109.018
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability