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: BLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-115.026369
Energy at 298.15K-115.030554
HF Energy-115.026369
Nuclear repulsion energy39.059231
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 BLYP/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' 3286 3265 8.00 89.77 0.30 0.47
2 A' 3039 3019 29.86 76.95 0.45 0.62
3 A' 2891 2872 63.63 115.17 0.09 0.17
4 A' 1545 1535 5.17 27.20 0.74 0.85
5 A' 1487 1477 5.12 11.05 0.62 0.77
6 A' 1372 1363 18.72 8.32 0.74 0.85
7 A' 1053 1047 20.52 6.67 0.51 0.67
8 A' 938 932 64.46 2.17 0.40 0.57
9 A" 2915 2896 104.53 72.15 0.75 0.86
10 A" 1523 1513 2.31 28.90 0.75 0.86
11 A" 1115 1108 0.14 13.08 0.75 0.86
12 A" 394 392 125.11 8.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10779.2 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 10709.2 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 BLYP/3-21G*
ABC
4.11618 0.77264 0.74382

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 0.687 0.000
O2 -0.048 -0.788 0.000
H3 -1.109 0.977 0.000
H4 0.428 1.134 0.898
H5 0.428 1.134 -0.898
H6 0.924 -1.064 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 H6
C11.47501.10001.11021.11022.0027
O21.47502.05952.17382.17381.0105
H31.10002.05951.78711.78712.8809
H41.11022.17381.78711.79582.4251
H51.11022.17381.78711.79582.4251
H62.00271.01052.88092.42512.4251

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 105.843 O2 C1 H3 105.294
O2 C1 H4 113.720 O2 C1 H5 113.720
H3 C1 H4 107.918 H3 C1 H5 107.918
H4 C1 H5 107.959
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.326      
2 O -0.498      
3 H 0.197      
4 H 0.156      
5 H 0.156      
6 H 0.314      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.439 0.948 0.000 1.724
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.572 -2.104 0.000
y -2.104 -13.003 0.000
z 0.000 0.000 -13.561
Traceless
 xyz
x 1.710 -2.104 0.000
y -2.104 -0.436 0.000
z 0.000 0.000 -1.273
Polar
3z2-r2-2.547
x2-y21.431
xy-2.104
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.327 -0.226 0.000
y -0.226 2.552 0.000
z 0.000 0.000 1.830


<r2> (average value of r2) Å2
<r2> 24.491
(<r2>)1/2 4.949