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All results from a given calculation for CH3OHH2O (methanol water dimer)

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-191.584832
Energy at 298.15K-191.590133
HF Energy-191.053196
Nuclear repulsion energy78.374255
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 MP3=FULL/6-31G*
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' 3806 3571 11.40      
2 A' 3772 3539 319.85      
3 A' 3188 2991 45.28      
4 A' 3060 2871 57.25      
5 A' 1746 1639 93.36      
6 A' 1577 1480 1.82      
7 A' 1541 1446 6.77      
8 A' 1501 1408 55.78      
9 A' 1151 1080 3.58      
10 A' 1129 1059 102.52      
11 A' 299 280 274.20      
12 A' 183 172 9.52      
13 A' 69 65 50.41      
14 A" 3918 3677 57.68      
15 A" 3114 2922 78.61      
16 A" 1561 1465 1.06      
17 A" 1210 1136 1.31      
18 A" 725 681 160.50      
19 A" 215 202 2.53      
20 A" 99 92 19.60      
21 A" 61 57 64.50      

Unscaled Zero Point Vibrational Energy (zpe) 16962.8 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 15916.2 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 MP3=FULL/6-31G*
ABC
1.12049 0.12487 0.11667

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.396 0.000
O2 -0.969 0.368 0.000
O3 1.988 0.562 0.000
C4 -1.367 -0.986 0.000
H5 2.275 1.073 0.769
H6 2.275 1.073 -0.769
H7 -2.459 -1.001 0.000
H8 -1.020 -1.531 -0.890
H9 -1.020 -1.531 0.890

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96941.99481.94352.49492.49492.82812.35482.3548
O20.96942.96321.41113.40743.40742.02342.09762.0976
O31.99482.96323.69480.96630.96634.71383.77143.7714
C41.94351.41113.69484.25354.25351.09251.09971.0997
H52.49493.40740.96634.25351.53715.22534.51554.2016
H62.49493.40740.96634.25351.53715.22534.20164.5155
H72.82812.02344.71381.09255.22535.22531.77311.7731
H82.35482.09763.77141.09974.51554.20161.77311.7803
H92.35482.09763.77141.09974.20164.51551.77311.7803

picture of methanol water dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 C4 108.024 H1 O3 H5 109.886
H1 O3 H6 109.886 O2 H1 O3 176.854
O2 C4 H7 107.155 O2 C4 H8 112.739
O2 C4 H9 112.739 H5 O3 H6 105.370
H7 C4 H8 107.959 H7 C4 H9 107.959
H8 C4 H9 108.085
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability