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All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: MP2/CEP-31G

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 MP2/CEP-31G
 hartrees
Energy at 0K-20.680096
Energy at 298.15K-20.679911
HF Energy-20.582067
Nuclear repulsion energy11.482022
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 MP2/CEP-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 A' 2893 2795 189.55      
2 A' 1203 1162 24.85      
3 A' 701 678 124.75      

Unscaled Zero Point Vibrational Energy (zpe) 2398.4 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 2317.6 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 MP2/CEP-31G
ABC
14.85786 0.51191 0.49486

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.047 1.297 0.000
Cl2 0.047 -0.547 0.000
H3 -1.070 1.511 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.84311.1375
Cl21.84312.3414
H31.13752.3414

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 100.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-20.692319
Energy at 298.15K-20.692145
HF Energy-20.615221
Nuclear repulsion energy11.623837
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 MP2/CEP-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 A' 3229 3120 19.28      
2 A' 1012 978 1.64      
3 A' 793 767 44.55      

Unscaled Zero Point Vibrational Energy (zpe) 2516.9 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 2432.1 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 MP2/CEP-31G
ABC
23.28828 0.51767 0.50641

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.038 1.244 0.000
Cl2 0.038 -0.549 0.000
H3 -0.874 1.862 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.79241.1022
Cl21.79242.5777
H31.10222.5777

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 124.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability