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All results from a given calculation for H2OCH3OH (water methanol dimer)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-191.646911
Energy at 298.15K-191.652713
HF Energy-191.103723
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy81.257231
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 MP2/6-311G*
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 3956 3760 72.79      
2 A 3870 3678 27.95      
3 A 3771 3583 190.86      
4 A 3222 3061 19.39      
5 A 3155 2999 45.58      
6 A 3076 2923 44.06      
7 A 1781 1692 84.21      
8 A 1554 1477 5.71      
9 A 1541 1464 6.15      
10 A 1530 1454 3.51      
11 A 1412 1342 34.93      
12 A 1204 1144 0.23      
13 A 1103 1048 32.98      
14 A 1079 1026 103.91      
15 A 714 678 229.57      
16 A 456 434 64.08      
17 A 303 288 177.18      
18 A 219 208 3.40      
19 A 173 164 160.06      
20 A 113 107 9.24      
21 A 49 47 36.80      

Unscaled Zero Point Vibrational Energy (zpe) 17139.6 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 16287.7 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 MP2/6-311G*
ABC
0.81221 0.16137 0.14091

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.108 0.334 0.163
O2 -1.921 -0.107 -0.118
O3 0.770 0.749 0.141
H4 -2.348 -0.430 0.677
H5 0.745 1.169 -0.724
C6 1.280 -0.575 -0.028
H7 2.261 -0.567 -0.510
H8 1.387 -0.989 0.973
H9 0.587 -1.197 -0.598

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.96621.92401.54412.21742.56233.55172.93792.4074
O20.96622.83570.95823.01663.23584.22493.59282.7759
O31.92402.83573.37640.96161.42862.09212.02282.0896
H41.54410.95823.37643.75263.69834.76103.78803.2903
H52.21743.01660.96163.75261.95262.31462.81912.3744
C62.56233.23581.42863.69831.95261.09321.08831.0924
H73.55174.22492.09214.76102.31461.09321.77261.7908
H82.93793.59282.02283.78802.81911.08831.77261.7763
H92.40742.77592.08963.29032.37441.09241.79081.7763

picture of water methanol dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 106.721 H1 O3 H5 94.505
H1 O3 C6 98.608 O2 H1 O3 156.380
O3 C6 H7 111.425 O3 C6 H8 106.185
O3 C6 H9 111.274 H5 O3 C6 107.959
H7 C6 H8 108.697 H7 C6 H9 110.043
H8 C6 H9 109.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability