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All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
2 1 yes CS 3A"

State 1 (1A')

Jump to S2C1
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-496.073574
Energy at 298.15K-496.073364
HF Energy-496.073574
Nuclear repulsion energy35.355667
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/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 A' 2638 2614 125.25      
2 A' 1214 1203 9.69      
3 A' 644 638 85.12      

Unscaled Zero Point Vibrational Energy (zpe) 2248.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 2227.6 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/3-21G
ABC
14.19391 0.49572 0.47899

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.047 1.325 0.000
Cl2 0.047 -0.554 0.000
H3 -1.091 1.471 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.87941.1483
Cl21.87942.3240
H31.14832.3240

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 97.322
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.266      
2 Cl 0.057      
3 H 0.208      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.565 0.153 0.000 1.573
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.841 -2.473 0.000
y -2.473 -20.053 0.000
z 0.000 0.000 -18.394
Traceless
 xyz
x -0.617 -2.473 0.000
y -2.473 -0.936 0.000
z 0.000 0.000 1.553
Polar
3z2-r23.106
x2-y20.212
xy-2.473
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.095 -0.388 0.000
y -0.388 5.093 0.000
z 0.000 0.000 1.458


<r2> (average value of r2) Å2
<r2> 31.302
(<r2>)1/2 5.595

State 2 (3A")

Jump to S1C1
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-496.069367
Energy at 298.15K-496.069152
HF Energy-496.069367
Nuclear repulsion energy36.667735
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/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 A' 939 931 2.47      
2 A' 719 712 48.22      
3 A' 3088 3060 5.36      

Unscaled Zero Point Vibrational Energy (zpe) 2372.9 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 2351.3 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/3-21G
ABC
22.33394 0.52400 0.51199

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.039 1.240 0.000
Cl2 0.039 -0.545 0.000
H3 -0.891 1.823 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.78491.0978
Cl21.78492.5444
H31.09782.5444

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 122.108
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.358      
2 Cl 0.106      
3 H 0.252      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.950 0.743 0.000 1.206
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.514 -1.660 0.000
y -1.660 -17.301 0.000
z 0.000 0.000 -19.852
Traceless
 xyz
x 0.062 -1.660 0.000
y -1.660 1.883 0.000
z 0.000 0.000 -1.945
Polar
3z2-r2-3.890
x2-y2-1.214
xy-1.660
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.502 -0.214 0.000
y -0.214 4.537 0.000
z 0.000 0.000 0.978


<r2> (average value of r2) Å2
<r2> 30.017
(<r2>)1/2 5.479