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All results from a given calculation for CH3OHH2O (methanol water 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-191.159933
Energy at 298.15K-191.164892
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 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' 4119 3748 37.91      
2 A' 4109 3739 280.27      
3 A' 3232 2941 55.10      
4 A' 3132 2851 76.65      
5 A' 1749 1592 98.32      
6 A' 1630 1483 4.21      
7 A' 1607 1462 6.57      
8 A' 1516 1379 41.99      
9 A' 1188 1081 7.51      
10 A' 1180 1073 127.20      
11 A' 193 175 217.35      
12 A' 128 117 19.08      
13 A' 63 57 34.97      
14 A" 4216 3836 110.77      
15 A" 3171 2885 82.64      
16 A" 1619 1474 2.43      
17 A" 1279 1164 2.66      
18 A" 603 549 145.34      
19 A" 178 162 8.16      
20 A" 85 78 15.22      
21 A" 58 53 26.53      

Unscaled Zero Point Vibrational Energy (zpe) 17526.8 cm-1
Scaled (by 0.91) Zero Point Vibrational Energy (zpe) 15949.4 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 HF_cp_opt/aug-cc-pVTZ
ABC
1.11442 0.11732 0.10991

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.417 0.000
O2 -0.938 0.510 0.000
O3 2.102 0.259 0.000
C4 -1.544 -0.747 0.000
H5 2.564 0.580 0.755
H6 2.564 0.580 -0.755
H7 -2.614 -0.597 0.000
H8 -1.280 -1.325 -0.882
H9 -1.280 -1.325 0.882

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.94272.10751.93342.67802.67802.80412.33492.3349
O20.94273.05011.39503.58353.58352.00852.06412.0641
O32.10753.05013.78150.94150.94154.79293.83723.8372
C41.93341.39503.78154.38224.38221.08111.08661.0866
H52.67803.58350.94154.38221.50975.36384.59194.2922
H62.67803.58350.94154.38221.50975.36384.29224.5919
H72.80412.00854.79291.08115.36385.36381.75691.7569
H82.33492.06413.83721.08664.59194.29221.75691.7634
H92.33492.06413.83721.08664.29224.59191.75691.7634

picture of methanol water dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 C4 110.085 H1 O3 H5 117.677
H1 O3 H6 117.677 O2 H1 O3 178.667
O2 C4 H7 107.741 O2 C4 H8 111.961
O2 C4 H9 111.961 H5 O3 H6 106.589
H7 C4 H8 108.286 H7 C4 H9 108.286
H8 C4 H9 108.477
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 -0.453      
4 C 0.000      
5 H 0.227      
6 H 0.227      
7 H 0.000      
8 H 0.000      
9 H 0.000      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.989 -0.304 0.000 3.004
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.939 5.961 0.000
y 5.961 -20.725 0.000
z 0.000 0.000 -17.898
Traceless
 xyz
x 7.372 5.961 0.000
y 5.961 -5.806 0.000
z 0.000 0.000 -1.566
Polar
3z2-r2-3.132
x2-y28.786
xy5.961
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.168 0.033 0.000
y 0.033 1.235 0.000
z 0.000 0.000 1.400


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