return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBEPBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/STO-3G
 hartrees
Energy at 0K-114.039150
Energy at 298.15K-114.043298
HF Energy-114.039150
Nuclear repulsion energy38.925497
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 PBEPBE/STO-3G
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' 3567 3259 43.17 35.65 0.28 0.44
2 A' 3355 3065 2.86 30.13 0.65 0.79
3 A' 3134 2863 24.89 44.55 0.03 0.06
4 A' 1647 1505 3.61 17.19 0.75 0.86
5 A' 1565 1430 1.94 4.67 0.75 0.86
6 A' 1551 1417 9.53 9.39 0.67 0.80
7 A' 1126 1029 0.39 5.45 0.41 0.58
8 A' 1052 961 23.45 0.32 0.66 0.80
9 A" 3256 2974 25.10 31.00 0.75 0.86
10 A" 1618 1479 3.12 15.70 0.75 0.86
11 A" 1151 1052 0.37 4.97 0.75 0.86
12 A" 414 378 59.43 6.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11718.0 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 10705.5 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 PBEPBE/STO-3G
ABC
3.96717 0.77905 0.74590

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.052 0.679 0.000
O2 -0.052 -0.793 0.000
H3 -1.118 0.996 0.000
H4 0.438 1.126 0.903
H5 0.438 1.126 -0.903
H6 0.969 -0.982 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 H6
C11.47151.11201.12051.12051.9495
O21.47152.08182.17652.17651.0387
H31.11202.08181.80361.80362.8751
H41.12052.17651.80361.80612.3540
H51.12052.17651.80361.80612.3540
H61.94951.03872.87512.35402.3540

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 100.489 O2 C1 H3 106.545
O2 C1 H4 113.530 O2 C1 H5 113.530
H3 C1 H4 107.779 H3 C1 H5 107.779
H4 C1 H5 107.402
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.158      
2 O -0.222      
3 H 0.083      
4 H 0.067      
5 H 0.067      
6 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.110 0.685 0.000 1.305
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.880 -1.293 0.000
y -1.293 -12.333 0.000
z 0.000 0.000 -12.332
Traceless
 xyz
x 1.452 -1.293 0.000
y -1.293 -0.727 0.000
z 0.000 0.000 -0.725
Polar
3z2-r2-1.450
x2-y21.452
xy-1.293
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.395 -0.242 0.000
y -0.242 1.516 0.000
z 0.000 0.000 0.878


<r2> (average value of r2) Å2
<r2> 23.925
(<r2>)1/2 4.891