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

using model chemistry: B3LYPultrafine/3-21G

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/3-21G
 hartrees
Energy at 0K-191.071861
Energy at 298.15K-191.078360
Counterpoise corrected energy-191.058053
CP Energy at 298.15K-191.063622
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy82.475947
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/3-21G
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 3514 3391 2.40      
2 A 3509 3386 23.54      
3 A 3272 3157 219.28      
4 A 3148 3038 1.65      
5 A 3079 2971 61.21      
6 A 3023 2916 58.85      
7 A 1733 1672 64.17      
8 A 1599 1543 3.81      
9 A 1576 1521 4.29      
10 A 1496 1444 2.66      
11 A 1373 1325 21.61      
12 A 1161 1121 4.17      
13 A 1081 1043 104.34      
14 A 988 953 72.89      
15 A 919 887 252.83      
16 A 402 387 119.89      
17 A 370 357 64.79      
18 A 304 293 97.52      
19 A 277 268 19.68      
20 A 235 227 24.45      
21 A 150 144 71.24      

Unscaled Zero Point Vibrational Energy (zpe) 16603.7 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 16020.9 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/3-21G
ABC
0.75378 0.18837 0.15814

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.988 0.495 -0.180
O2 -1.784 -0.120 -0.111
O3 0.709 0.763 0.061
H4 -2.050 -0.060 0.847
H5 1.456 1.339 -0.247
C6 1.111 -0.653 0.003
H7 1.765 -0.927 0.839
H8 0.151 -1.166 0.067
H9 1.600 -0.912 -0.945

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H11.00781.73501.57812.58652.39943.26222.02873.0434
O21.00782.65020.99603.55552.94573.76182.20643.5739
O31.73502.65022.98510.99171.47342.14042.00842.1475
H41.57810.99602.98513.93033.32563.91322.58394.1547
H52.58653.55550.99173.93032.03682.53212.84172.3610
C62.39942.94571.47343.32562.03681.09671.09061.0972
H73.26223.76182.14043.91322.53211.09671.80531.7913
H82.02872.20642.00842.58392.84171.09061.80531.7856
H93.04343.57392.14754.15472.36101.09721.79131.7856

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 103.910 H1 O3 H5 141.594
H1 O3 C6 96.467 O2 H1 O3 149.016
O3 C6 H7 111.940 O3 C6 H8 102.092
O3 C6 H9 112.489 H5 O3 C6 109.885
H7 C6 H8 111.253 H7 C6 H9 109.477
H8 C6 H9 109.407
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.351      
2 O -0.676      
3 O -0.555      
4 H 0.306      
5 H 0.353      
6 C -0.367      
7 H 0.179      
8 H 0.230      
9 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.043 0.811 0.893 3.273
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.960 0.123 -4.481
y 0.123 -17.791 -1.136
z -4.481 -1.136 -18.547
Traceless
 xyz
x -0.791 0.123 -4.481
y 0.123 0.963 -1.136
z -4.481 -1.136 -0.171
Polar
3z2-r2-0.343
x2-y2-1.169
xy0.123
xz-4.481
yz-1.136


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.593 0.132 -0.405
y 0.132 2.801 -0.115
z -0.405 -0.115 2.581


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