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: CCSD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/6-31G**
 hartrees
Energy at 0K-115.404716
Energy at 298.15K 
HF Energy-115.045797
Nuclear repulsion energy40.296722
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 CCSD/6-31G**
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' 3917 3653 15.36      
2 A' 3209 2992 35.21      
3 A' 3075 2868 53.37      
4 A' 1574 1467 3.09      
5 A' 1537 1433 9.35      
6 A' 1419 1323 30.60      
7 A' 1114 1039 8.58      
8 A' 1086 1013 106.67      
9 A" 3135 2924 75.68      
10 A" 1558 1453 0.94      
11 A" 1206 1125 1.74      
12 A" 339 316 128.52      

Unscaled Zero Point Vibrational Energy (zpe) 11583.8 cm-1
Scaled (by 0.9326) Zero Point Vibrational Energy (zpe) 10803.0 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 CCSD/6-31G**
ABC
4.28205 0.82683 0.79742

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G**

Point Group is Cs

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability