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

using model chemistry: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-192.073866
Energy at 298.15K-192.079200
Nuclear repulsion energy79.097409
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 B1B95/cc-pVDZ
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' 3804 3656 12.97      
2 A' 3693 3550 461.28      
3 A' 3111 2991 52.18      
4 A' 2971 2856 82.83      
5 A' 1651 1587 60.37      
6 A' 1494 1436 1.97      
7 A' 1465 1409 14.76      
8 A' 1438 1382 37.74      
9 A' 1132 1088 42.89      
10 A' 1110 1067 65.88      
11 A' 281 270 218.37      
12 A' 195 188 9.30      
13 A' 69 66 39.64      
14 A" 3905 3754 60.18      
15 A" 3017 2900 97.06      
16 A" 1465 1408 0.97      
17 A" 1163 1118 0.90      
18 A" 742 713 108.30      
19 A" 226 218 5.74      
20 A" 104 100 20.98      
21 A" 62 60 45.88      

Unscaled Zero Point Vibrational Energy (zpe) 16548.9 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 15906.8 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 B1B95/cc-pVDZ
ABC
1.11032 0.13019 0.12116

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.363 0.000
O2 -0.962 0.224 0.000
O3 1.840 0.828 0.000
C4 -1.183 -1.158 0.000
H5 1.944 1.417 0.758
H6 1.944 1.417 -0.758
H7 -2.270 -1.327 0.000
H8 -0.771 -1.669 -0.892
H9 -0.771 -1.669 0.892

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.97211.89761.92732.33752.33752.83012.34942.3494
O20.97212.86621.40023.23133.23132.02912.10162.1016
O31.89762.86623.61690.96600.96604.64033.72083.7208
C41.92731.40023.61694.12134.12131.09981.10761.1076
H52.33753.23130.96604.12131.51635.08534.42914.1123
H62.33753.23130.96604.12131.51635.08534.11234.4291
H72.83012.02914.64031.09985.08535.08531.77751.7775
H82.34942.10163.72081.10764.42914.11231.77751.7849
H92.34942.10163.72081.10764.11234.42911.77751.7849

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 107.293 H1 O3 H5 104.692
H1 O3 H6 104.692 O2 H1 O3 174.046
O2 C4 H7 107.914 O2 C4 H8 113.349
O2 C4 H9 113.349 H5 O3 H6 103.402
H7 C4 H8 107.270 H7 C4 H9 107.270
H8 C4 H9 107.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.124      
2 O -0.318      
3 O -0.236      
4 C 0.081      
5 H 0.156      
6 H 0.156      
7 H 0.027      
8 H 0.004      
9 H 0.004      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.358 1.333 0.000 2.709
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.796 6.499 0.000
y 6.499 -14.816 0.000
z 0.000 0.000 -17.804
Traceless
 xyz
x -2.486 6.499 0.000
y 6.499 3.483 0.000
z 0.000 0.000 -0.997
Polar
3z2-r2-1.995
x2-y2-3.979
xy6.499
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.514 0.511 0.000
y 0.511 3.497 0.000
z 0.000 0.000 3.202


<r2> (average value of r2) Å2
<r2> 95.640
(<r2>)1/2 9.780