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 CH3Cl (Methyl chloride)

using model chemistry: MP2/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/aug-cc-pVQZ
 hartrees
Energy at 0K-499.562039
Energy at 298.15K-499.565017
HF Energy-499.154961
Nuclear repulsion energy51.565193
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/aug-cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3113 2957 21.34 149.94 0.00 0.00
2 A1 1397 1326 10.66 0.05 0.01 0.03
3 A1 770 732 23.56 16.17 0.15 0.26
4 E 3227 3065 2.05 47.41 0.75 0.86
4 E 3227 3065 2.05 47.41 0.75 0.86
5 E 1506 1431 5.93 3.79 0.75 0.86
5 E 1506 1431 5.93 3.79 0.75 0.86
6 E 1046 993 2.08 0.48 0.75 0.86
6 E 1046 993 2.08 0.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8419.2 cm-1
Scaled (by 0.9497) Zero Point Vibrational Energy (zpe) 7995.8 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/aug-cc-pVQZ
ABC
5.28687 0.44820 0.44820

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVQZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.121
Cl2 0.000 0.000 0.654
H3 0.000 1.027 -1.464
H4 0.889 -0.513 -1.464
H5 -0.889 -0.513 -1.464

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.77501.08271.08271.0827
Cl21.77502.35382.35382.3538
H31.08272.35381.77871.7787
H41.08272.35381.77871.7787
H51.08272.35381.77871.7787

picture of Methyl chloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 108.464 Cl2 C1 H4 108.464
Cl2 C1 H5 108.464 H3 C1 H4 110.459
H3 C1 H5 110.459 H4 C1 H5 110.459
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability