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=FULL/6-31G*

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=FULL/6-31G*
 hartrees
Energy at 0K-499.369084
Energy at 298.15K-499.372076
HF Energy-499.092913
Nuclear repulsion energy51.414870
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*
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 3151 2969 21.25 98.96 0.01 0.02
2 A1 1468 1384 15.48 4.79 0.54 0.70
3 A1 785 739 23.68 14.52 0.31 0.47
4 E 3263 3074 5.28 56.55 0.75 0.86
4 E 3263 3074 5.28 56.55 0.75 0.86
5 E 1547 1457 5.92 17.37 0.75 0.86
5 E 1547 1457 5.92 17.37 0.75 0.86
6 E 1086 1023 4.19 7.52 0.75 0.86
6 E 1086 1023 4.19 7.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8597.7 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 8100.8 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=FULL/6-31G*
ABC
5.26052 0.44581 0.44581

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.122
Cl2 0.000 0.000 0.656
H3 0.000 1.030 -1.474
H4 0.892 -0.515 -1.474
H5 -0.892 -0.515 -1.474

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.77771.08811.08811.0881
Cl21.77772.36582.36582.3658
H31.08812.36581.78321.7832
H41.08812.36581.78321.7832
H51.08812.36581.78321.7832

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 108.895 Cl2 C1 H4 108.895
Cl2 C1 H5 108.895 H3 C1 H4 110.041
H3 C1 H5 110.041 H4 C1 H5 110.041
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability