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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-497.021226
Energy at 298.15K-497.024190
HF Energy-496.794660
Nuclear repulsion energy50.700521
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 MP2/3-21G*
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 3135 2982 15.20 88.26 0.01 0.03
2 A1 1475 1403 11.18 4.23 0.57 0.73
3 A1 702 668 26.03 16.16 0.32 0.49
4 E 3233 3076 4.55 51.03 0.75 0.86
4 E 3233 3076 4.55 51.03 0.75 0.86
5 E 1586 1508 7.60 20.34 0.75 0.86
5 E 1586 1508 7.60 20.34 0.75 0.86
6 E 1085 1032 4.71 8.33 0.75 0.86
6 E 1085 1032 4.71 8.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8558.7 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 8141.9 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 MP2/3-21G*
ABC
5.21739 0.43101 0.43101

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.146
Cl2 0.000 0.000 0.667
H3 0.000 1.034 -1.487
H4 0.895 -0.517 -1.487
H5 -0.895 -0.517 -1.487

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.81331.08841.08841.0884
Cl21.81332.38912.38912.3891
H31.08842.38911.79051.7905
H41.08842.38911.79051.7905
H51.08842.38911.79051.7905

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 108.234 Cl2 C1 H4 108.234
Cl2 C1 H5 108.234 H3 C1 H4 110.680
H3 C1 H5 110.680 H4 C1 H5 110.680
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability