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-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/aug-cc-pVDZ
 hartrees
Energy at 0K-499.425313
Energy at 298.15K-499.428278
HF Energy-499.121956
Nuclear repulsion energy50.946299
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-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 3105 2978 24.49 147.68 0.00 0.00
2 A1 1368 1312 13.44 0.01 0.33 0.49
3 A1 750 719 25.63 18.06 0.17 0.29
4 E 3225 3093 3.72 49.07 0.75 0.86
4 E 3225 3093 3.72 49.07 0.75 0.86
5 E 1473 1412 4.90 4.00 0.75 0.86
5 E 1473 1412 4.90 4.00 0.75 0.86
6 E 1033 990 2.06 0.61 0.75 0.86
6 E 1033 990 2.06 0.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8341.5 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 7999.5 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-pVDZ
ABC
5.14504 0.43766 0.43766

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.135
Cl2 0.000 0.000 0.662
H3 0.000 1.041 -1.478
H4 0.902 -0.521 -1.478
H5 -0.902 -0.521 -1.478

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.79711.09611.09611.0961
Cl21.79712.37982.37982.3798
H31.09612.37981.80311.8031
H41.09612.37981.80311.8031
H51.09612.37981.80311.8031

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 108.236 Cl2 C1 H4 108.236
Cl2 C1 H5 108.236 H3 C1 H4 110.677
H3 C1 H5 110.677 H4 C1 H5 110.677
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability