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: mPW1PW91/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 mPW1PW91/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-500.159664
Energy at 298.15K-500.162695
HF Energy-500.159664
Nuclear repulsion energy51.504341
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 mPW1PW91/aug-cc-pV(T+d)Z
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3090 3090 23.32      
2 A1 1380 1380 9.25      
3 A1 749 749 25.08      
4 E 3190 3190 3.38      
4 E 3190 3190 3.38      
5 E 1482 1482 6.68      
5 E 1482 1482 6.68      
6 E 1033 1033 2.45      
6 E 1033 1033 2.45      

Unscaled Zero Point Vibrational Energy (zpe) 8314.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8314.8 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 mPW1PW91/aug-cc-pV(T+d)Z
ABC
5.26847 0.44731 0.44731

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pV(T+d)Z

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.122
Cl2 0.000 0.000 0.655
H3 0.000 1.029 -1.466
H4 0.891 -0.514 -1.466
H5 -0.891 -0.514 -1.466

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4 H5
C11.77631.08501.08501.0850
Cl21.77632.35742.35742.3574
H31.08502.35741.78181.7818
H41.08502.35741.78181.7818
H51.08502.35741.78181.7818

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 108.529 Cl2 C1 H4 108.529
Cl2 C1 H5 108.529 H3 C1 H4 110.396
H3 C1 H5 110.396 H4 C1 H5 110.396
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.428      
2 Cl -0.231      
3 H 0.220      
4 H 0.220      
5 H 0.220      


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 -1.927 1.927
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.853 0.000 0.000
y 0.000 -19.853 0.000
z 0.000 0.000 -18.136
Traceless
 xyz
x -0.858 0.000 0.000
y 0.000 -0.858 0.000
z 0.000 0.000 1.717
Polar
3z2-r23.434
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 3.868 0.000 0.000
y 0.000 3.867 0.000
z 0.000 0.000 5.324


<r2> (average value of r2) Å2
<r2> 36.504
(<r2>)1/2 6.042