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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-191.736452
Energy at 298.15K-191.742050
HF Energy-191.149721
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy80.180354
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/TZVP
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 3939 3734 81.25      
2 A 3881 3679 41.85      
3 A 3726 3532 313.27      
4 A 3221 3054 15.33      
5 A 3164 2999 39.79      
6 A 3084 2924 44.58      
7 A 1652 1566 41.36      
8 A 1536 1456 3.83      
9 A 1524 1445 6.89      
10 A 1519 1440 2.91      
11 A 1386 1313 22.01      
12 A 1207 1144 0.65      
13 A 1099 1042 20.50      
14 A 1063 1007 115.49      
15 A 667 632 149.77      
16 A 404 383 72.28      
17 A 311 295 145.98      
18 A 196 185 5.18      
19 A 126 119 132.77      
20 A 76 72 7.86      
21 A 63 60 27.94      

Unscaled Zero Point Vibrational Energy (zpe) 16921.7 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 16040.0 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/TZVP
ABC
0.88931 0.14726 0.13131

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.212 0.196 0.028
O2 2.095 -0.187 0.108
O3 -0.709 0.688 -0.100
H4 2.533 0.055 -0.710
H5 -1.008 1.298 0.580
C6 -1.473 -0.508 0.001
H7 -2.533 -0.331 -0.194
H8 -1.091 -1.188 -0.754
H9 -1.365 -0.984 0.978

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.96561.98691.51902.53942.77613.78822.79812.9897
O20.96562.94430.95903.47213.58404.63973.44863.6556
O31.98692.94433.35830.96101.42332.09152.02342.0951
H41.51900.95903.35833.96794.10715.10613.83074.3729
H52.53943.47210.96103.96791.95262.36132.82262.3438
C62.77613.58401.42334.10711.95261.09211.08621.0920
H73.78824.63972.09155.10612.36131.09211.76891.7789
H82.79813.44862.02343.83072.82261.08621.76891.7661
H92.98973.65562.09514.37292.34381.09201.77891.7661

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 104.228 H1 O3 H5 114.394
H1 O3 C6 107.847 O2 H1 O3 170.875
O3 C6 H7 111.832 O3 C6 H8 106.707
O3 C6 H9 112.137 H5 O3 C6 108.400
H7 C6 H8 108.602 H7 C6 H9 109.077
H8 C6 H9 108.349
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability