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 HCCl (Chloromethylene)

using model chemistry: B3LYPultrafine/cc-pVDZ

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 B3LYPultrafine/cc-pVDZ
 hartrees
Energy at 0K-498.788740
Energy at 298.15K-498.788594
HF Energy-498.788740
Nuclear repulsion energy38.121421
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 B3LYPultrafine/cc-pVDZ
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' 2883 2796 90.64      
2 A' 1221 1184 5.43      
3 A' 791 768 96.28      

Unscaled Zero Point Vibrational Energy (zpe) 2447.4 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 2374.0 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 B3LYPultrafine/cc-pVDZ
ABC
15.22111 0.58263 0.56115

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.046 1.214 0.000
Cl2 0.046 -0.512 0.000
H3 -1.059 1.427 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.72621.1250
Cl21.72622.2322
H31.12502.2322

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 100.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.114      
2 Cl 0.023      
3 H 0.091      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.455 -0.555 0.000 1.557
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.364 -2.494 0.000
y -2.494 -19.802 0.000
z 0.000 0.000 -17.845
Traceless
 xyz
x -0.540 -2.494 0.000
y -2.494 -1.198 0.000
z 0.000 0.000 1.738
Polar
3z2-r23.476
x2-y20.438
xy-2.494
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.392 -0.358 0.000
y -0.358 4.681 0.000
z 0.000 0.000 1.856


<r2> (average value of r2) Å2
<r2> 28.379
(<r2>)1/2 5.327

State 2 (3A")

Jump to S1C1
Energy calculated at B3LYPultrafine/cc-pVDZ
 hartrees
Energy at 0K-498.782942
Energy at 298.15K-498.782783
HF Energy-498.782942
Nuclear repulsion energy38.580762
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 B3LYPultrafine/cc-pVDZ
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' 950 921 2.05      
2 A' 873 847 51.03      
3 A' 3165 3070 5.77      

Unscaled Zero Point Vibrational Energy (zpe) 2493.4 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 2418.6 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 B3LYPultrafine/cc-pVDZ
ABC
24.72301 0.58238 0.56897

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.037 1.165 0.000
Cl2 0.037 -0.518 0.000
H3 -0.852 1.808 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.68291.0969
Cl21.68292.4895
H31.09692.4895

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 125.848
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.124      
2 Cl 0.027      
3 H 0.097      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.755 0.269 0.000 0.802
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.269 -1.444 0.000
y -1.444 -16.993 0.000
z 0.000 0.000 -19.390
Traceless
 xyz
x -0.078 -1.444 0.000
y -1.444 1.837 0.000
z 0.000 0.000 -1.760
Polar
3z2-r2-3.519
x2-y2-1.277
xy-1.444
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.960 -0.235 0.000
y -0.235 4.447 0.000
z 0.000 0.000 1.556


<r2> (average value of r2) Å2
<r2> 28.106
(<r2>)1/2 5.302