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: QCISD/aug-cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-499.561673
Energy at 298.15K-499.564712
HF Energy-499.149799
Nuclear repulsion energy51.364856
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 QCISD/aug-cc-pV(T+d)Z
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 3093 3093 23.42      
2 A1 1408 1408 12.54      
3 A1 754 754 24.31      
4 E 3192 3192 4.31      
4 E 3192 3192 4.31      
5 E 1513 1513 5.27      
5 E 1513 1513 5.27      
6 E 1051 1051 1.62      
6 E 1051 1051 1.62      

Unscaled Zero Point Vibrational Energy (zpe) 8382.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8382.7 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 QCISD/aug-cc-pV(T+d)Z
ABC
5.25793 0.44444 0.44444

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pV(T+d)Z

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 0.657
H3 0.000 1.030 -1.469
H4 0.892 -0.515 -1.469
H5 -0.892 -0.515 -1.469

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.78311.08521.08521.0852
Cl21.78312.36192.36192.3619
H31.08522.36191.78361.7836
H41.08522.36191.78361.7836
H51.08522.36191.78361.7836

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 108.399 Cl2 C1 H4 108.399
Cl2 C1 H5 108.399 H3 C1 H4 110.521
H3 C1 H5 110.521 H4 C1 H5 110.521
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability