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: B3LYP_cp_opt/6-311+G(3df,2pd)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP_cp_opt/6-311+G(3df,2pd)
 hartrees
Energy at 0K-192.245985
Energy at 298.15K-192.251360
Nuclear repulsion energy40.211531
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 B3LYP_cp_opt/6-311+G(3df,2pd)
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 3897 3780 85.41      
2 A 3851 3736 45.47      
3 A 3683 3573 412.16      
4 A 3126 3032 16.74      
5 A 3069 2977 38.19      
6 A 3013 2923 52.91      
7 A 1648 1598 47.80      
8 A 1510 1465 6.14      
9 A 1501 1456 4.23      
10 A 1482 1437 3.28      
11 A 1366 1325 26.51      
12 A 1176 1140 0.34      
13 A 1078 1046 12.23      
14 A 1037 1006 122.98      
15 A 625 606 66.85      
16 A 371 360 60.47      
17 A 291 282 153.14      
18 A 171 166 3.11      
19 A 111 108 115.98      
20 A 62 60 15.86      
21 A 45 44 9.22      

Unscaled Zero Point Vibrational Energy (zpe) 16556.1 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 16059.4 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 B3LYP_cp_opt/6-311+G(3df,2pd)
ABC
1.06890 0.12786 0.11842

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.223 0.110 -0.028
O2 2.131 -0.202 0.108
O3 -0.638 0.624 -0.098
H4 2.614 0.067 -0.677
H5 -0.835 1.288 0.567
C6 -1.583 -0.442 0.004
H7 -2.599 -0.091 -0.188
H8 -1.314 -1.171 -0.756
H9 -1.542 -0.924 0.983

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.96981.93161.53512.44442.85973.83062.93413.1204
O20.96982.89670.95973.35083.72294.74053.68143.8443
O31.93162.89673.34870.96051.42802.08952.02792.0936
H41.53510.95973.34873.86364.28135.23764.11884.5832
H52.44443.35080.96053.86361.96682.36322.83322.3592
C62.85973.72291.42804.28131.96681.09201.08681.0919
H73.83064.74052.08955.23762.36321.09201.77181.7836
H82.93413.68142.02794.11882.83321.08681.77181.7704
H93.12043.84432.09364.58322.35921.09191.78361.7704

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 105.418 H1 O3 H5 110.862
H1 O3 C6 115.877 O2 H1 O3 173.090
O3 C6 H7 111.332 O3 C6 H8 106.700
O3 C6 H9 111.671 H5 O3 C6 109.297
H7 C6 H8 108.822 H7 C6 H9 109.511
H8 C6 H9 108.696
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.528      
4 H 0.000      
5 H 0.183      
6 C 0.202      
7 H 0.048      
8 H 0.047      
9 H 0.048      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.672 0.889 -0.356 2.838
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.100 1.713 -5.028
y 1.713 -19.321 1.714
z -5.028 1.714 -19.368
Traceless
 xyz
x -0.755 1.713 -5.028
y 1.713 0.413 1.714
z -5.028 1.714 0.342
Polar
3z2-r20.684
x2-y2-0.779
xy1.713
xz-5.028
yz1.714


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.931 -0.165 0.006
y -0.165 3.350 -0.050
z 0.006 -0.050 2.943


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