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(T)/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(T)/cc-pV(T+d)Z
 hartrees
Energy at 0K-499.568645
Energy at 298.15K-499.571609
HF Energy-499.148697
Nuclear repulsion energy51.272597
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(T)/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 3077 3077        
2 A1 1385 1385        
3 A1 746 746        
4 E 3178 3178        
4 E 3177 3177        
5 E 1493 1493        
5 E 1493 1493        
6 E 1032 1032        
6 E 1032 1032        

Unscaled Zero Point Vibrational Energy (zpe) 8305.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8305.2 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 QCISD(T)/cc-pV(T+d)Z
ABC
5.25404 0.44264 0.44264

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.128
Cl2 0.000 0.000 0.658
H3 0.000 1.030 -1.473
H4 0.892 -0.515 -1.473
H5 -0.892 -0.515 -1.473

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.78651.08631.08631.0863
Cl21.78652.36712.36712.3671
H31.08632.36711.78431.7843
H41.08632.36711.78431.7843
H51.08632.36711.78431.7843

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 108.499 Cl2 C1 H4 108.499
Cl2 C1 H5 108.499 H3 C1 H4 110.426
H3 C1 H5 110.426 H4 C1 H5 110.426
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability