return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYPultrafine_cp/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 B3LYPultrafine_cp/6-31+G**
 hartrees
Energy at 0K-192.175822
Energy at 298.15K-192.168169
Nuclear repulsion energy 
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 B3LYPultrafine/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 3894 3749 90.80      
2 A 3838 3695 44.38      
3 A 3653 3517 436.15      
4 A 3149 3032 18.16      
5 A 3090 2975 42.66      
6 A 3026 2914 57.78      
7 A 1633 1572 60.00      
8 A 1511 1455 6.20      
9 A 1502 1446 4.57      
10 A 1484 1429 5.67      
11 A 1360 1309 29.24      
12 A 1176 1132 0.22      
13 A 1076 1036 23.23      
14 A 1043 1004 128.56      
15 A 681 656 97.69      
16 A 413 398 72.46      
17 A 306 295 187.76      
18 A 194 187 2.14      
19 A 129 124 144.37      
20 A 75 72 20.42      
21 A 56 54 12.82      

Unscaled Zero Point Vibrational Energy (zpe) 16645.0 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 16024.1 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 B3LYPultrafine/6-31+G**
ABC
1.03241 0.13272 0.12214

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.181 0.120 -0.034
O2 2.089 -0.207 0.107
O3 -0.629 0.641 -0.101
H4 2.596 0.074 -0.663
H5 -0.820 1.286 0.592
C6 -1.550 -0.453 0.003
H7 -2.583 -0.117 -0.144
H8 -1.289 -1.153 -0.791
H9 -1.461 -0.965 0.969

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.97531.88501.54912.39872.79033.77312.88023.0266
O20.97532.85500.96413.30483.64824.67943.62113.7302
O31.88502.85503.32280.96571.43312.09602.03272.1007
H41.54910.96413.32283.83564.23175.20854.07614.4940
H52.39873.30480.96573.83561.97542.37052.84342.3699
C62.79033.64821.43314.23171.97541.09641.09111.0964
H73.77314.67942.09605.20852.37051.09641.78011.7932
H82.88023.62112.03274.07612.84341.09111.78011.7786
H93.02663.73022.10074.49402.36991.09641.79321.7786

picture of water methanol dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.426      
2 O -0.769      
3 O -0.589      
4 H 0.345      
5 H 0.361      
6 C -0.214      
7 H 0.137      
8 H 0.159      
9 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.817 0.960 -0.398 3.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000