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-pCVDZ

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-pCVDZ
 hartrees
Energy at 0K-499.408307
Energy at 298.15K-499.411290
HF Energy-499.118426
Nuclear repulsion energy51.178109
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-pCVDZ
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 3114 2977 24.24      
2 A1 1393 1331 15.73      
3 A1 776 742 23.20      
4 E 3237 3094 5.45      
4 E 3237 3094 5.45      
5 E 1488 1423 5.09      
5 E 1488 1423 5.09      
6 E 1040 994 3.02      
6 E 1040 994 3.02      

Unscaled Zero Point Vibrational Energy (zpe) 8406.9 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 8036.2 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-pCVDZ
ABC
5.16728 0.44255 0.44255

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.125
Cl2 0.000 0.000 0.658
H3 0.000 1.039 -1.479
H4 0.900 -0.519 -1.479
H5 -0.900 -0.519 -1.479

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.78371.09741.09741.0974
Cl21.78372.37672.37672.3767
H31.09742.37671.79921.7992
H41.09742.37671.79921.7992
H51.09742.37671.79921.7992

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 108.818 Cl2 C1 H4 108.818
Cl2 C1 H5 108.818 H3 C1 H4 110.116
H3 C1 H5 110.116 H4 C1 H5 110.116
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability