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

using model chemistry: HF_cp_opt/6-311+G(3df,2pd)

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/6-311+G(3df,2pd)
 hartrees
Energy at 0K-191.155314
Energy at 298.15K-191.160254
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/6-311+G(3df,2pd)
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' 4147 3774 60.34      
2 A' 4138 3765 259.77      
3 A' 3232 2941 54.96      
4 A' 3131 2850 75.50      
5 A' 1750 1592 97.25      
6 A' 1631 1485 4.17      
7 A' 1608 1464 6.45      
8 A' 1517 1381 42.80      
9 A' 1189 1082 7.52      
10 A' 1184 1077 127.32      
11 A' 191 173 225.10      
12 A' 127 116 19.58      
13 A' 62 56 36.51      
14 A" 4241 3859 112.38      
15 A" 3170 2885 82.67      
16 A" 1621 1475 2.49      
17 A" 1281 1166 2.65      
18 A" 603 549 151.17      
19 A" 176 160 8.67      
20 A" 84 77 16.67      
21 A" 58 53 26.46      

Unscaled Zero Point Vibrational Energy (zpe) 17570.2 cm-1
Scaled (by 0.91) Zero Point Vibrational Energy (zpe) 15988.9 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/6-311+G(3df,2pd)
ABC
1.11211 0.11698 0.10958

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF_cp_opt/6-311+G(3df,2pd)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.422 0.000
O2 -0.936 0.523 0.000
O3 2.109 0.231 0.000
C4 -1.553 -0.726 0.000
H5 2.577 0.543 0.754
H6 2.577 0.543 -0.754
H7 -2.622 -0.566 0.000
H8 -1.296 -1.307 -0.881
H9 -1.296 -1.307 0.881

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.94192.11741.93162.68752.68752.80202.33322.3332
O20.94193.05921.39323.59323.59322.00682.06242.0624
O32.11743.05923.78510.94060.94064.79763.83833.8383
C41.93161.39323.78514.38594.38591.08081.08631.0863
H52.68753.59320.94064.38591.50765.36904.59264.2936
H62.68753.59320.94064.38591.50765.36904.29364.5926
H72.80202.00684.79761.08085.36905.36901.75631.7563
H82.33322.06243.83831.08634.59264.29361.75631.7627
H92.33322.06243.83831.08634.29364.59261.75631.7627

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 110.123 H1 O3 H5 117.746
H1 O3 H6 117.746 O2 H1 O3 179.018
O2 C4 H7 107.748 O2 C4 H8 111.974
O2 C4 H9 111.974 H5 O3 H6 106.536
H7 C4 H8 108.280 H7 C4 H9 108.280
H8 C4 H9 108.459
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.305      
4 C 0.000      
5 H 0.152      
6 H 0.152      
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
  3.004 -0.353 0.000 3.024
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.675 5.910 0.000
y 5.910 -20.879 0.000
z 0.000 0.000 -17.903
Traceless
 xyz
x 7.716 5.910 0.000
y 5.910 -6.090 0.000
z 0.000 0.000 -1.626
Polar
3z2-r2-3.251
x2-y29.204
xy5.910
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.048 0.025 0.000
y 0.025 1.098 0.000
z 0.000 0.000 1.304


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