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

using model chemistry: HF_cp_opt/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF_cp_opt/aug-cc-pVTZ
 hartrees
Energy at 0K-191.160461
Energy at 298.15K-191.165698
Nuclear repulsion energy40.771753
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 HF_cp_opt/aug-cc-pVTZ
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 4200 3822 137.86      
2 A 4168 3793 69.49      
3 A 4062 3696 225.64      
4 A 3259 2966 31.01      
5 A 3206 2917 58.25      
6 A 3155 2871 62.79      
7 A 1766 1607 73.91      
8 A 1630 1483 5.15      
9 A 1621 1475 3.34      
10 A 1609 1464 6.27      
11 A 1480 1347 40.34      
12 A 1280 1165 2.37      
13 A 1160 1056 82.12      
14 A 1156 1052 78.29      
15 A 549 500 102.57      
16 A 337 306 109.71      
17 A 273 249 101.40      
18 A 141 128 2.74      
19 A 105 96 119.28      
20 A 50 45 17.34      
21 A 38 35 7.48      

Unscaled Zero Point Vibrational Energy (zpe) 17622.7 cm-1
Scaled (by 0.91) Zero Point Vibrational Energy (zpe) 16036.7 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 HF_cp_opt/aug-cc-pVTZ
ABC
1.15563 0.11749 0.11001

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF_cp_opt/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.336 0.097 0.030
O2 2.236 -0.182 0.104
O3 -0.671 0.582 -0.070
H4 2.648 0.035 -0.712
H5 -0.967 1.355 0.373
C6 -1.645 -0.428 0.001
H7 -2.562 -0.128 -0.492
H8 -1.246 -1.294 -0.505
H9 -1.863 -0.698 1.028

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.94562.06671.50932.64683.02623.93922.98093.4442
O20.94563.01070.94023.56353.89004.83583.70594.2340
O32.06673.01073.42460.93971.40452.06392.00942.0655
H41.50930.94023.42463.99944.37655.21794.12024.8912
H52.64683.56350.93973.99941.94342.34372.80492.3341
C63.02623.89001.40454.37651.94341.08431.07941.0842
H73.93924.83582.06395.21792.34371.08431.75841.7678
H82.98093.70592.00944.12022.80491.07941.75841.7572
H93.44424.23402.06554.89122.33411.08421.76781.7572

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 106.329 H1 O3 H5 118.469
H1 O3 C6 120.132 O2 H1 O3 176.002
O3 C6 H7 111.394 O3 C6 H8 107.265
O3 C6 H9 111.541 H5 O3 C6 110.424
H7 C6 H8 108.720 H7 C6 H9 109.215
H8 C6 H9 108.612
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.489      
4 H 0.000      
5 H 0.178      
6 C -0.637      
7 H 0.308      
8 H 0.328      
9 H 0.312      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.910 1.023 -0.704 3.164
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.878 -0.850 -0.716
y -0.850 -10.823 1.413
z -0.716 1.413 -13.259
Traceless
 xyz
x 1.163 -0.850 -0.716
y -0.850 1.246 1.413
z -0.716 1.413 -2.409
Polar
3z2-r2-4.818
x2-y2-0.055
xy-0.850
xz-0.716
yz1.413


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.844 0.175 -0.011
y 0.175 3.026 0.052
z -0.011 0.052 2.704


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