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

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-190.959614
Energy at 298.15K-190.964837
HF Energy-190.959614
Nuclear repulsion energy81.371680
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 TPSSh/6-31G(2df,p)
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 3764 3632 12.58      
2 A 3010 2905 67.17      
3 A 1537 1483 1.17      
4 A 1405 1356 2.95      
5 A 1206 1164 0.87      
6 A 1031 995 92.75      
7 A 560 540 68.72      
8 A 378 364 38.92      
9 B 3763 3632 22.24      
10 B 3058 2951 60.72      
11 B 1454 1403 68.76      
12 B 1377 1328 22.29      
13 B 1069 1031 223.71      
14 B 1010 975 15.83      
15 B 392 378 165.22      

Unscaled Zero Point Vibrational Energy (zpe) 12506.0 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 12068.3 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 TPSSh/6-31G(2df,p)
ABC
1.38899 0.34004 0.30093

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.524
O2 0.000 1.176 -0.244
O3 0.000 -1.176 -0.244
H4 -0.891 -0.084 1.160
H5 0.891 0.084 1.160
H6 -0.799 1.162 -0.783
H7 0.799 -1.162 -0.783

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40411.40411.09781.09781.92321.9232
O21.40412.35132.08581.98920.96442.5291
O31.40412.35131.98922.08582.52910.9644
H41.09782.08581.98921.78922.31052.7923
H51.09781.98922.08581.78922.79232.3105
H61.92320.96442.52912.31052.79232.8215
H71.92322.52910.96442.79232.31052.8215

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.119 C1 O3 H7 107.119
O2 C1 O3 113.711 O2 C1 H4 112.381
O2 C1 H5 104.658 O3 C1 H4 104.658
O3 C1 H5 112.381 H4 C1 H5 109.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability