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: PBE1PBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBE1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-499.896323
Energy at 298.15K-499.899287
HF Energy-499.896323
Nuclear repulsion energy51.432069
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 PBE1PBE/6-31G(2df,p)
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 2960 19.52 105.20 0.00 0.01
2 A1 1377 1318 12.16 2.29 0.47 0.64
3 A1 763 730 25.72 11.84 0.24 0.39
4 E 3204 3067 3.22 54.68 0.75 0.86
4 E 3204 3067 3.22 54.68 0.75 0.86
5 E 1477 1413 5.73 11.77 0.75 0.86
5 E 1477 1413 5.73 11.77 0.75 0.86
6 E 1029 985 3.52 4.10 0.75 0.86
6 E 1029 985 3.52 4.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8326.9 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 7968.9 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 PBE1PBE/6-31G(2df,p)
ABC
5.22867 0.44658 0.44658

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.122
Cl2 0.000 0.000 0.655
H3 0.000 1.033 -1.469
H4 0.894 -0.516 -1.469
H5 -0.894 -0.516 -1.469

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.77711.08941.08941.0894
Cl21.77712.36182.36182.3618
H31.08942.36181.78861.7886
H41.08942.36181.78861.7886
H51.08942.36181.78861.7886

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 108.573 Cl2 C1 H4 108.573
Cl2 C1 H5 108.573 H3 C1 H4 110.354
H3 C1 H5 110.354 H4 C1 H5 110.354
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.419      
2 Cl -0.148      
3 H 0.189      
4 H 0.189      
5 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.965 1.965
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.611 0.000 0.000
y 0.000 -19.611 0.000
z 0.000 0.000 -17.811
Traceless
 xyz
x -0.900 0.000 0.000
y 0.000 -0.900 0.000
z 0.000 0.000 1.800
Polar
3z2-r23.600
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.913 0.000 0.000
y 0.000 2.913 0.000
z 0.000 0.000 4.393


<r2> (average value of r2) Å2
<r2> 36.395
(<r2>)1/2 6.033