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: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-499.840786
Energy at 298.15K-499.843721
HF Energy-499.840786
Nuclear repulsion energy50.835138
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 PBEPBE/6-31G*
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 3024 2981 22.51 114.40 0.00 0.01
2 A1 1370 1350 14.26 7.47 0.47 0.64
3 A1 720 709 24.95 11.16 0.31 0.48
4 E 3126 3081 6.56 61.34 0.75 0.86
4 E 3126 3081 6.56 61.34 0.75 0.86
5 E 1463 1442 6.91 17.75 0.75 0.86
5 E 1463 1442 6.91 17.75 0.75 0.86
6 E 1017 1002 5.50 8.42 0.75 0.86
6 E 1017 1002 5.50 8.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8161.7 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 8044.9 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 PBEPBE/6-31G*
ABC
5.14926 0.43556 0.43556

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.136
Cl2 0.000 0.000 0.664
H3 0.000 1.041 -1.489
H4 0.901 -0.520 -1.489
H5 -0.901 -0.520 -1.489

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.79951.09871.09871.0987
Cl21.79952.39062.39062.3906
H31.09872.39061.80231.8023
H41.09872.39061.80231.8023
H51.09872.39061.80231.8023

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 108.725 Cl2 C1 H4 108.725
Cl2 C1 H5 108.725 H3 C1 H4 110.207
H3 C1 H5 110.207 H4 C1 H5 110.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.573      
2 Cl -0.071      
3 H 0.215      
4 H 0.215      
5 H 0.215      


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 -2.020 2.020
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.737 0.000 0.000
y 0.000 -19.737 0.000
z 0.000 0.000 -17.923
Traceless
 xyz
x -0.907 0.000 0.000
y 0.000 -0.907 0.000
z 0.000 0.000 1.814
Polar
3z2-r23.628
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 2.450 0.000 0.000
y 0.000 2.450 0.000
z 0.000 0.000 4.158


<r2> (average value of r2) Å2
<r2> 37.073
(<r2>)1/2 6.089