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 CH2Cl2 (Methylene chloride)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-955.306687
Energy at 298.15K-955.309161
HF Energy-955.306687
Nuclear repulsion energy133.189995
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 mPW1PW91/3-21G*
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 3159 3000 4.15 87.51 0.09 0.16
2 A1 1518 1442 1.35 15.49 0.74 0.85
3 A1 699 664 13.03 13.85 0.12 0.21
4 A1 289 274 0.57 7.81 0.54 0.71
5 A2 1231 1169 0.00 15.45 0.75 0.86
6 B1 3238 3075 0.08 57.72 0.75 0.86
7 B1 920 874 4.51 3.56 0.75 0.86
8 B2 1339 1271 26.95 5.70 0.75 0.86
9 B2 713 677 143.35 5.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6552.8 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 6222.5 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 mPW1PW91/3-21G*
ABC
1.05725 0.10802 0.09990

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.776
H2 -0.899 0.000 1.387
H3 0.899 0.000 1.387
Cl4 0.000 1.486 -0.218
Cl5 0.000 -1.486 -0.218

Atom - Atom Distances (Å)
  C1 H2 H3 Cl4 Cl5
C11.08651.08651.78801.7880
H21.08651.79702.36482.3648
H31.08651.79702.36482.3648
Cl41.78802.36482.36482.9720
Cl51.78802.36482.36482.9720

picture of Methylene chloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 111.573 H2 C1 Cl4 108.221
H2 C1 Cl5 108.221 H3 C1 Cl4 108.221
H3 C1 Cl5 108.221 Cl4 C1 Cl5 112.425
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.644      
2 H 0.313      
3 H 0.313      
4 Cl 0.009      
5 Cl 0.009      


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 1.908 1.908
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.373 0.000 0.000
y 0.000 -34.216 0.000
z 0.000 0.000 -29.649
Traceless
 xyz
x 0.560 0.000 0.000
y 0.000 -3.705 0.000
z 0.000 0.000 3.145
Polar
3z2-r26.291
x2-y22.844
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.775 0.000 0.000
y 0.000 6.071 0.000
z 0.000 0.000 3.612


<r2> (average value of r2) Å2
<r2> 105.602
(<r2>)1/2 10.276