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

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-191.636712
Energy at 298.15K-191.642346
HF Energy-191.077266
Nuclear repulsion energy80.792041
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 MP3/6-31+G**
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 4028 3748 73.52      
2 A 3956 3681 32.45      
3 A 3877 3607 176.30      
4 A 3251 3025 26.49      
5 A 3208 2985 41.86      
6 A 3129 2911 39.14      
7 A 1736 1615 64.09      
8 A 1576 1466 3.22      
9 A 1566 1458 2.73      
10 A 1542 1435 6.24      
11 A 1422 1323 35.28      
12 A 1216 1131 1.19      
13 A 1113 1036 1.22      
14 A 1091 1015 123.00      
15 A 633 589 167.23      
16 A 473 440 25.70      
17 A 280 261 214.66      
18 A 194 180 4.55      
19 A 128 119 128.41      
20 A 90 83 8.61      
21 A 66 61 39.39      

Unscaled Zero Point Vibrational Energy (zpe) 17286.1 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 16084.8 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 MP3/6-31+G**
ABC
0.81624 0.15556 0.13703

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.214 0.196 0.028
O2 2.094 -0.185 0.108
O3 -0.714 0.690 -0.101
H4 2.534 0.050 -0.709
H5 -1.007 1.294 0.584
C6 -1.469 -0.510 0.002
H7 -2.530 -0.341 -0.189
H8 -1.083 -1.184 -0.757
H9 -1.354 -0.989 0.975

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.96241.99411.51932.53912.77363.78812.79152.9828
O20.96242.94840.95753.46843.57884.63593.44063.6455
O31.99412.94843.36630.95891.42122.09012.01912.0947
H41.51930.95753.36633.97004.10405.10603.82224.3634
H52.53913.46840.95893.97001.95122.36462.81842.3427
C62.77363.57881.42124.10401.95121.09151.08551.0913
H73.78814.63592.09015.10602.36461.09151.76811.7770
H82.79153.44062.01913.82222.81841.08551.76811.7646
H92.98283.64552.09474.36342.34271.09131.77701.7646

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 104.624 H1 O3 H5 113.926
H1 O3 C6 107.418 O2 H1 O3 170.949
O3 C6 H7 111.908 O3 C6 H8 106.550
O3 C6 H9 112.300 H5 O3 C6 108.569
H7 C6 H8 108.621 H7 C6 H9 108.997
H8 C6 H9 108.319
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability