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

using model chemistry: B3LYPultrafine_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 B3LYPultrafine_cp_opt/3-21G
 hartrees
Energy at 0K-191.060251
Energy at 298.15K-191.065732
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_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' 3461 3340 5.94      
2 A' 3260 3145 429.38      
3 A' 3087 2979 87.42      
4 A' 2948 2845 87.66      
5 A' 1692 1633 34.71      
6 A' 1591 1536 2.06      
7 A' 1537 1483 2.27      
8 A' 1486 1434 75.97      
9 A' 1131 1091 33.78      
10 A' 1022 987 65.59      
11 A' 250 241 124.46      
12 A' 223 215 152.51      
13 A' 105 101 49.48      
14 A" 3604 3478 3.69      
15 A" 2965 2862 129.15      
16 A" 1566 1511 0.71      
17 A" 1162 1121 0.08      
18 A" 869 839 215.83      
19 A" 242 234 10.97      
20 A" 129 125 7.64      
21 A" 54 52 35.95      

Unscaled Zero Point Vibrational Energy (zpe) 16191.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 15624.8 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 B3LYPultrafine_cp_opt/3-21G
ABC
1.03539 0.13620 0.12547

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.458 0.000
O2 -0.984 0.236 0.000
O3 1.718 0.882 0.000
C4 -1.106 -1.203 0.000
H5 2.137 1.312 0.791
H6 2.137 1.312 -0.791
H7 -2.177 -1.431 0.000
H8 -0.666 -1.690 -0.888
H9 -0.666 -1.690 0.888

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H11.00841.76931.99552.43312.43312.88222.41832.4183
O21.00842.77761.44433.39403.39402.05012.14522.1452
O31.76932.77763.50990.99330.99334.52953.61743.6174
C41.99551.44433.50994.17924.17921.09471.10471.1047
H52.43313.39400.99334.17921.58235.17254.43714.1083
H62.43313.39400.99334.17921.58235.17254.10834.4371
H72.88222.05014.52951.09475.17255.17251.77181.7718
H82.41832.14523.61741.10474.43714.10831.77181.7760
H92.41832.14523.61741.10474.10834.43711.77181.7760

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 107.566 H1 O3 H5 120.858
H1 O3 H6 120.858 O2 H1 O3 178.860
O2 C4 H7 106.889 O2 C4 H8 113.960
O2 C4 H9 113.960 H5 O3 H6 105.592
H7 C4 H8 107.330 H7 C4 H9 107.330
H8 C4 H9 107.004
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.643      
4 C 0.000      
5 H 0.321      
6 H 0.321      
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
  4.141 1.165 0.000 4.301
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.185 7.855 0.000
y 7.855 -15.350 0.000
z 0.000 0.000 -17.703
Traceless
 xyz
x 2.342 7.855 0.000
y 7.855 0.594 0.000
z 0.000 0.000 -2.936
Polar
3z2-r2-5.871
x2-y21.165
xy7.855
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.138 -0.099 0.000
y -0.099 0.628 0.000
z 0.000 0.000 1.120


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