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

using model chemistry: B3LYP_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 B3LYP_cp_opt/3-21G
 hartrees
Energy at 0K-191.060252
Energy at 298.15K-191.065664
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 B3LYP_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 3339 5.89      
2 A' 3260 3145 429.69      
3 A' 3087 2979 87.52      
4 A' 2949 2845 87.71      
5 A' 1691 1632 34.86      
6 A' 1591 1535 2.02      
7 A' 1537 1483 2.12      
8 A' 1487 1435 76.42      
9 A' 1131 1092 33.87      
10 A' 1023 987 65.39      
11 A' 247 238 87.13      
12 A' 218 210 178.94      
13 A' 101 98 60.44      
14 A" 3604 3478 3.69      
15 A" 2966 2862 129.13      
16 A" 1566 1511 0.72      
17 A" 1162 1121 0.09      
18 A" 870 840 215.46      
19 A" 240 232 11.05      
20 A" 129 124 8.47      
21 A" 29 28 35.57      

Unscaled Zero Point Vibrational Energy (zpe) 16174.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 15606.3 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 B3LYP_cp_opt/3-21G
ABC
1.03642 0.13612 0.12543

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.457 0.000
O2 -0.984 0.234 0.000
O3 1.717 0.885 0.000
C4 -1.104 -1.205 0.000
H5 2.130 1.321 0.791
H6 2.130 1.321 -0.791
H7 -2.175 -1.434 0.000
H8 -0.664 -1.692 -0.888
H9 -0.664 -1.692 0.888

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H11.00851.76961.99562.43122.43122.88222.41832.4183
O21.00852.77791.44433.39163.39162.05012.14522.1452
O31.76962.77793.51130.99340.99344.53063.61933.6193
C41.99561.44433.51134.17974.17971.09471.10471.1047
H52.43123.39160.99344.17971.58265.17224.43904.1102
H62.43123.39160.99344.17971.58265.17224.11024.4390
H72.88222.05014.53061.09475.17225.17221.77181.7718
H82.41832.14523.61931.10474.43904.11021.77181.7760
H92.41832.14523.61931.10474.11024.43901.77181.7760

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 107.572 H1 O3 H5 120.657
H1 O3 H6 120.657 O2 H1 O3 178.767
O2 C4 H7 106.888 O2 C4 H8 113.959
O2 C4 H9 113.959 H5 O3 H6 105.613
H7 C4 H8 107.330 H7 C4 H9 107.330
H8 C4 H9 107.005
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.650      
4 C 0.000      
5 H 0.325      
6 H 0.325      
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
  4.122 1.188 0.000 4.289
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.280 7.871 0.000
y 7.871 -15.274 0.000
z 0.000 0.000 -17.702
Traceless
 xyz
x 2.208 7.871 0.000
y 7.871 0.717 0.000
z 0.000 0.000 -2.924
Polar
3z2-r2-5.849
x2-y20.994
xy7.871
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.190 -0.169 0.000
y -0.169 0.562 0.000
z 0.000 0.000 1.028


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