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

using model chemistry: MP2=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-190.692093
Energy at 298.15K-190.697353
HF Energy-189.988668
Nuclear repulsion energy81.873899
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 MP2=FULL/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3867 3671 32.51      
2 A 3111 2953 55.20      
3 A 1567 1488 0.47      
4 A 1417 1345 2.82      
5 A 1232 1170 0.69      
6 A 1062 1009 100.39      
7 A 574 545 67.35      
8 A 385 366 53.85      
9 B 3866 3670 53.88      
10 B 3154 2995 39.98      
11 B 1469 1395 52.04      
12 B 1391 1320 30.73      
13 B 1116 1060 237.90      
14 B 1026 975 26.91      
15 B 382 363 169.11      

Unscaled Zero Point Vibrational Energy (zpe) 12809.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 12161.6 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 MP2=FULL/cc-pVTZ
ABC
1.41375 0.34310 0.30417

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.527
O2 0.000 1.167 -0.246
O3 0.000 -1.167 -0.246
H4 -0.885 -0.074 1.151
H5 0.885 0.074 1.151
H6 -0.806 1.156 -0.768
H7 0.806 -1.156 -0.768

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.39921.39921.08501.08501.91401.9140
O21.39922.33332.06681.98160.96082.5137
O31.39922.33331.98162.06682.51370.9608
H41.08502.06681.98161.77522.28052.7771
H51.08501.98162.06681.77522.77712.2805
H61.91400.96082.51372.28052.77712.8194
H71.91402.51370.96082.77712.28052.8194

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 106.921 C1 O3 H7 106.921
O2 C1 O3 112.981 O2 C1 H4 111.984
O2 C1 H5 105.111 O3 C1 H4 105.111
O3 C1 H5 111.984 H4 C1 H5 109.782
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability