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

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 C1 1A'
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-191.660322
Energy at 298.15K-191.665607
Counterpoise corrected energy-191.660322
CP Energy at 298.15K-191.665607
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy78.813308
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' 3863 3695 11.84      
2 A' 3826 3661 360.19      
3 A' 3139 3003 53.47      
4 A' 3014 2883 66.39      
5 A' 1693 1619 59.23      
6 A' 1528 1462 2.72      
7 A' 1499 1435 18.96      
8 A' 1484 1419 34.29      
9 A' 1138 1089 6.93      
10 A' 1125 1077 87.77      
11 A' 264 252 210.67      
12 A' 190 182 13.98      
13 A' 63 60 37.81      
14 A" 3961 3790 51.42      
15 A" 3066 2934 91.81      
16 A" 1501 1436 0.68      
17 A" 1189 1137 2.51      
18 A" 728 696 119.19      
19 A" 222 212 1.15      
20 A" 100 96 10.81      
21 A" 62 60 57.49      

Unscaled Zero Point Vibrational Energy (zpe) 16827.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 16098.5 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
1.04604 0.13087 0.12095

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.409 0.000
O2 -0.967 0.358 0.000
O3 1.917 0.593 0.000
C4 -1.288 -1.016 0.000
H5 2.164 1.142 0.755
H6 2.164 1.142 -0.755
H7 -2.389 -1.106 0.000
H8 -0.907 -1.549 -0.897
H9 -0.907 -1.549 0.897

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96811.92601.92092.40662.40662.82872.33642.3364
O20.96812.89351.41063.31503.31502.04072.10752.1075
O31.92602.89353.58670.96540.96544.62913.65623.6562
C41.92091.41063.58674.14084.14081.10411.11071.1107
H52.40663.31500.96544.14081.51025.13364.40454.0854
H62.40663.31500.96544.14081.51025.13364.08544.4045
H72.82872.04074.62911.10415.13365.13361.78761.7876
H82.33642.10753.65621.11074.40454.08541.78761.7939
H92.33642.10753.65621.11074.08544.40451.78761.7939

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 106.221 H1 O3 H5 108.021
H1 O3 H6 108.021 O2 H1 O3 177.551
O2 C4 H7 107.866 O2 C4 H8 112.871
O2 C4 H9 112.871 H5 O3 H6 102.922
H7 C4 H8 107.637 H7 C4 H9 107.637
H8 C4 H9 107.717
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability