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 CH3OHH2O (methanol water dimer)

using model chemistry: B3LYPultrafine_cp/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 B3LYPultrafine_cp/aug-cc-pVTZ
 hartrees
Energy at 0K-192.248541
Energy at 298.15K-192.240431
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/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' 3791 3668 7.90      
2 A' 3695 3575 419.48      
3 A' 3092 2991 38.74      
4 A' 2981 2884 77.41      
5 A' 1629 1577 76.20      
6 A' 1510 1461 3.55      
7 A' 1477 1429 3.91      
8 A' 1416 1370 35.46      
9 A' 1112 1075 9.47      
10 A' 1059 1025 104.08      
11 A' 246 238 197.42      
12 A' 156 151 9.03      
13 A' 75 72 34.62      
14 A" 3890 3764 83.16      
15 A" 3020 2922 64.76      
16 A" 1497 1449 2.41      
17 A" 1172 1134 0.55      
18 A" 661 640 103.82      
19 A" 190 184 0.33      
20 A" 88 85 7.88      
21 A" 68 66 48.45      

Unscaled Zero Point Vibrational Energy (zpe) 16411.9 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 15878.5 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/aug-cc-pVTZ
ABC
1.13668 0.12315 0.11533

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.358 0.000
O2 -0.963 0.263 0.000
O3 1.919 0.763 0.000
C4 -1.293 -1.116 0.000
H5 2.157 1.294 0.766
H6 2.157 1.294 -0.766
H7 -2.379 -1.190 0.000
H8 -0.914 -1.632 -0.889
H9 -0.914 -1.632 0.889

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96761.96111.96102.47322.47322.83892.36362.3636
O20.96762.92491.41763.37443.37442.02912.09322.0932
O31.96112.92493.72090.96250.96254.72123.81433.8143
C41.96101.41763.72094.27794.27791.08921.09541.0954
H52.47323.37440.96254.27791.53215.22894.55354.2438
H62.47323.37440.96254.27791.53215.22894.24384.5535
H72.83892.02914.72121.08925.22895.22891.77001.7700
H82.36362.09323.81431.09544.55354.24381.77001.7781
H92.36362.09323.81431.09544.24384.55351.77001.7781

picture of methanol water dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.264      
2 O -0.491      
3 O -0.349      
4 C -0.504      
5 H 0.175      
6 H 0.175      
7 H 0.257      
8 H 0.236      
9 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.535 0.746 0.000 2.642
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