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/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-499.403153
Energy at 298.15K-499.406129
HF Energy-499.117483
Nuclear repulsion energy51.137210
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/cc-pVDZ
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 3118 2970 24.39 126.03 0.01 0.02
2 A1 1391 1325 16.04 1.72 0.41 0.58
3 A1 775 738 23.38 14.04 0.30 0.46
4 E 3239 3086 5.51 62.22 0.75 0.86
4 E 3239 3086 5.51 62.22 0.75 0.86
5 E 1487 1416 5.02 12.77 0.75 0.86
5 E 1487 1416 5.02 12.77 0.75 0.86
6 E 1039 990 2.95 4.80 0.75 0.86
6 E 1039 990 2.95 4.80 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8407.5 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 8008.1 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/cc-pVDZ
ABC
5.15991 0.44182 0.44182

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.126
Cl2 0.000 0.000 0.659
H3 0.000 1.039 -1.480
H4 0.900 -0.520 -1.480
H5 -0.900 -0.520 -1.480

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.78531.09811.09811.0981
Cl21.78532.37842.37842.3784
H31.09812.37841.80051.8005
H41.09812.37841.80051.8005
H51.09812.37841.80051.8005

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 108.806 Cl2 C1 H4 108.806
Cl2 C1 H5 108.806 H3 C1 H4 110.128
H3 C1 H5 110.128 H4 C1 H5 110.128
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability