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All results from a given calculation for CH3Cl (Methyl chloride)

using model chemistry: MP2/CEP-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/CEP-31G
 hartrees
Energy at 0K-21.998226
Energy at 298.15K-22.001151
HF Energy-21.881625
Nuclear repulsion energy18.992054
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/CEP-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 3088 2984 44.70 159.77 0.02 0.04
2 A1 1416 1368 20.18 1.05 0.22 0.37
3 A1 674 651 20.83 36.06 0.33 0.50
4 E 3229 3120 31.23 64.70 0.75 0.86
4 E 3229 3120 31.23 64.70 0.75 0.86
5 E 1493 1443 5.33 21.32 0.75 0.86
5 E 1493 1443 5.33 21.32 0.75 0.86
6 E 1027 992 5.72 15.96 0.75 0.86
6 E 1027 992 5.72 15.96 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8338.4 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 8057.4 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/CEP-31G
ABC
5.03994 0.40000 0.40000

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.197
Cl2 0.000 0.000 0.692
H3 0.000 1.052 -1.530
H4 0.911 -0.526 -1.530
H5 -0.911 -0.526 -1.530

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.88901.10321.10321.1032
Cl21.88902.45822.45822.4582
H31.10322.45821.82181.8218
H41.10322.45821.82181.8218
H51.10322.45821.82181.8218

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 107.560 Cl2 C1 H4 107.560
Cl2 C1 H5 107.560 H3 C1 H4 111.313
H3 C1 H5 111.313 H4 C1 H5 111.313
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability