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All results from a given calculation for CH3OH (Methyl alcohol)

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-23.447477
Energy at 298.15K-23.451650
HF Energy-23.447477
Nuclear repulsion energy25.113433
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/CEP-31G
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' 4091 3688 21.29      
2 A' 3358 3027 68.27      
3 A' 3210 2894 86.21      
4 A' 1641 1479 6.07      
5 A' 1609 1451 5.82      
6 A' 1436 1294 30.72      
7 A' 1125 1014 10.94      
8 A' 1113 1003 153.90      
9 A" 3286 2962 141.85      
10 A" 1637 1475 3.87      
11 A" 1254 1130 1.78      
12 A" 322 290 221.48      

Unscaled Zero Point Vibrational Energy (zpe) 12040.9 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 10853.7 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/CEP-31G
ABC
4.34924 0.80341 0.77831

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.045 0.681 0.000
O2 -0.045 -0.761 0.000
H3 -1.086 0.982 0.000
H4 0.443 1.078 0.891
H5 0.443 1.078 -0.891
H6 0.832 -1.141 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 H6
C11.44221.08331.09061.09062.0223
O21.44222.02992.10072.10070.9559
H31.08332.02991.77221.77222.8609
H41.09062.10071.77221.78172.4222
H51.09062.10071.77221.78172.4222
H62.02230.95592.86092.42222.4222

picture of Methyl alcohol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 113.422 O2 C1 H3 106.115
O2 C1 H4 111.320 O2 C1 H5 111.320
H3 C1 H4 109.225 H3 C1 H5 109.225
H4 C1 H5 109.548
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.220      
2 O -0.566      
3 H 0.167      
4 H 0.129      
5 H 0.129      
6 H 0.361      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.894 1.512 0.000 2.423
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.735 -2.724 0.000
y -2.724 -13.165 0.000
z 0.000 0.000 -13.612
Traceless
 xyz
x 1.653 -2.724 0.000
y -2.724 -0.491 0.000
z 0.000 0.000 -1.162
Polar
3z2-r2-2.325
x2-y21.429
xy-2.724
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.086 -0.200 0.000
y -0.200 2.245 0.000
z 0.000 0.000 1.663


<r2> (average value of r2) Å2
<r2> 21.809
(<r2>)1/2 4.670