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: MP2=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-115.463894
Energy at 298.15K-115.468075
HF Energy-115.053944
Nuclear repulsion energy40.480248
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 MP2=FULL/6-31G(2df,p)
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' 3910 3675 32.28      
2 A' 3218 3025 21.17      
3 A' 3080 2895 44.24      
4 A' 1562 1468 3.09      
5 A' 1519 1428 3.84      
6 A' 1409 1324 25.44      
7 A' 1124 1056 9.57      
8 A' 1086 1020 100.50      
9 A" 3150 2960 50.70      
10 A" 1548 1455 2.02      
11 A" 1205 1132 0.54      
12 A" 338 318 110.86      

Unscaled Zero Point Vibrational Energy (zpe) 11574.1 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 10878.5 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 MP2=FULL/6-31G(2df,p)
ABC
4.30255 0.83609 0.80619

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.046 0.656 0.000
O2 -0.046 -0.753 0.000
H3 -1.088 0.966 0.000
H4 0.432 1.083 0.886
H5 0.432 1.083 -0.886
H6 0.867 -1.037 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 H6
C11.40901.08701.09361.09361.9235
O21.40902.01072.09402.09400.9564
H31.08702.01071.76271.76272.7994
H41.09362.09401.76271.77252.3387
H51.09362.09401.76271.77252.3387
H61.92350.95642.79942.33872.3387

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 107.268 O2 C1 H3 106.619
O2 C1 H4 112.986 O2 C1 H5 112.986
H3 C1 H4 107.869 H3 C1 H5 107.869
H4 C1 H5 108.266
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability