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

using model chemistry: HF/daug-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/daug-cc-pVTZ
 hartrees
Energy at 0K-191.160358
Energy at 298.15K-191.165327
HF Energy-191.160358
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy78.042074
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/daug-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 3726 32.52      
2 A' 4108 3716 287.94      
3 A' 3232 2923 54.97      
4 A' 3132 2833 76.71      
5 A' 1750 1583 98.42      
6 A' 1630 1474 4.14      
7 A' 1607 1453 6.68      
8 A' 1517 1372 42.34      
9 A' 1189 1075 10.50      
10 A' 1180 1067 124.00      
11 A' 197 178 220.82      
12 A' 130 117 16.42      
13 A' 64 58 34.47      
14 A" 4215 3813 110.62      
15 A" 3170 2868 82.64      
16 A" 1619 1464 2.45      
17 A" 1279 1157 2.69      
18 A" 608 550 144.48      
19 A" 180 163 7.22      
20 A" 86 78 13.11      
21 A" 61 55 30.60      

Unscaled Zero Point Vibrational Energy (zpe) 17535.6 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 15862.7 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/daug-cc-pVTZ
ABC
1.12004 0.11734 0.10998

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.411 0.000
O2 -0.938 0.500 0.000
O3 2.100 0.276 0.000
C4 -1.539 -0.759 0.000
H5 2.551 0.612 0.755
H6 2.551 0.612 -0.755
H7 -2.611 -0.613 0.000
H8 -1.274 -1.336 -0.882
H9 -1.274 -1.336 0.882

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.94252.10421.93342.66832.66832.80412.33482.3348
O20.94253.04641.39493.57213.57212.00852.06392.0639
O32.10423.04643.78360.94150.94154.79363.84163.8416
C41.93341.39493.78364.38004.38001.08121.08661.0866
H52.66833.57210.94154.38001.50955.35874.59414.2946
H62.66833.57210.94154.38001.50955.35874.29464.5941
H72.80412.00854.79361.08125.35875.35871.75711.7571
H82.33482.06393.84161.08664.59414.29461.75711.7632
H92.33482.06393.84161.08664.29464.59411.75711.7632

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 110.105 H1 O3 H5 117.109
H1 O3 H6 117.109 O2 H1 O3 178.251
O2 C4 H7 107.748 O2 C4 H8 111.955
O2 C4 H9 111.955 H5 O3 H6 106.569
H7 C4 H8 108.299 H7 C4 H9 108.299
H8 C4 H9 108.457
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.315      
2 O -0.906      
3 O -0.559      
4 C -1.143      
5 H 0.192      
6 H 0.192      
7 H 0.616      
8 H 0.646      
9 H 0.646      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.956 -0.240 0.000 2.965
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.171 6.117 0.000
y 6.117 -20.555 0.000
z 0.000 0.000 -17.900
Traceless
 xyz
x 7.057 6.117 0.000
y 6.117 -5.520 0.000
z 0.000 0.000 -1.537
Polar
3z2-r2-3.074
x2-y28.385
xy6.117
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.401 0.281 0.000
y 0.281 4.050 0.000
z 0.000 0.000 3.900


<r2> (average value of r2) Å2
<r2> 103.779
(<r2>)1/2 10.187