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

using model chemistry: CCSD/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 CCSD/cc-pVDZ
 hartrees
Energy at 0K-190.467940
Energy at 298.15K-190.473257
HF Energy-189.923212
Nuclear repulsion energy81.466181
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 CCSD/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 3842 3640 19.67      
2 A 3058 2897 72.66      
3 A 1544 1462 2.75      
4 A 1429 1354 4.73      
5 A 1232 1167 0.78      
6 A 1078 1021 106.32      
7 A 586 555 85.42      
8 A 404 383 37.34      
9 B 3842 3639 34.06      
10 B 3109 2945 68.13      
11 B 1482 1404 98.10      
12 B 1401 1327 16.39      
13 B 1149 1088 204.39      
14 B 1034 979 18.53      
15 B 411 389 179.38      

Unscaled Zero Point Vibrational Energy (zpe) 12799.8 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 12125.3 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 CCSD/cc-pVDZ
ABC
1.38172 0.34245 0.30263

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/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 1.169 -0.248
O3 0.000 -1.169 -0.248
H4 -0.898 -0.078 1.172
H5 0.898 0.078 1.172
H6 -0.804 1.130 -0.785
H7 0.804 -1.130 -0.785

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40431.40431.10641.10641.91121.9112
O21.40432.33792.09212.00330.96732.4938
O31.40432.33792.00332.09212.49380.9673
H41.10642.09212.00331.80262.30162.7986
H51.10642.00332.09211.80262.79862.3016
H61.91120.96732.49382.30162.79862.7731
H71.91122.49380.96732.79862.30162.7731

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 105.910 C1 O3 H7 105.910
O2 C1 O3 112.690 O2 C1 H4 112.328
O2 C1 H5 105.243 O3 C1 H4 105.243
O3 C1 H5 112.328 H4 C1 H5 109.105
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability