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All results from a given calculation for CH3OHH2O (methanol water dimer)

using model chemistry: HF_cp_opt/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 HF_cp_opt/3-21G
 hartrees
Energy at 0K-189.994587
Energy at 298.15K-190.000047
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/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' 3837 3475 2.82      
2 A' 3740 3387 399.34      
3 A' 3265 2957 65.43      
4 A' 3156 2858 57.54      
5 A' 1806 1636 93.79      
6 A' 1704 1543 1.54      
7 A' 1643 1488 5.58      
8 A' 1561 1413 80.00      
9 A' 1203 1089 39.33      
10 A' 1114 1009 72.82      
11 A' 248 225 324.70      
12 A' 202 183 45.21      
13 A' 101 92 40.98      
14 A" 3970 3596 31.93      
15 A" 3183 2882 113.79      
16 A" 1689 1529 0.85      
17 A" 1257 1139 1.44      
18 A" 828 750 277.29      
19 A" 230 208 25.30      
20 A" 122 110 11.94      
21 A" 64 58 13.06      

Unscaled Zero Point Vibrational Energy (zpe) 17460.7 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 15812.5 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 HF_cp_opt/3-21G
ABC
1.05953 0.13204 0.12217

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.483 0.000
O2 -0.965 0.350 0.000
O3 1.850 0.676 0.000
C4 -1.275 -1.047 0.000
H5 2.355 0.925 0.784
H6 2.355 0.925 -0.784
H7 -2.352 -1.134 0.000
H8 -0.894 -1.561 -0.879
H9 -0.894 -1.561 0.879

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.97381.85961.99172.52122.52122.85442.39792.3979
O20.97382.83311.43123.45933.45932.03172.10472.1047
O31.85962.83313.56800.96570.96574.57483.64723.6472
C41.99171.43123.56804.20484.20481.08051.08731.0873
H52.52123.45930.96574.20481.56825.19734.41624.0920
H62.52123.45930.96574.20481.56825.19734.09204.4162
H72.85442.03174.57481.08055.19735.19731.75521.7552
H82.39792.10473.64721.08734.41624.09201.75521.7587
H92.39792.10473.64721.08734.09204.41621.75521.7587

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 110.367 H1 O3 H5 123.185
H1 O3 H6 123.185 O2 H1 O3 178.094
O2 C4 H7 107.149 O2 C4 H8 112.662
O2 C4 H9 112.662 H5 O3 H6 108.586
H7 C4 H8 108.123 H7 C4 H9 108.123
H8 C4 H9 107.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.736      
4 C 0.000      
5 H 0.368      
6 H 0.368      
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
  4.407 -0.157 0.000 4.410
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.972 7.280 0.000
y 7.280 -17.887 0.000
z 0.000 0.000 -17.472
Traceless
 xyz
x 6.708 7.280 0.000
y 7.280 -3.665 0.000
z 0.000 0.000 -3.042
Polar
3z2-r2-6.085
x2-y26.915
xy7.280
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.175 0.144 0.000
y 0.144 0.465 0.000
z 0.000 0.000 1.012


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