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All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: MP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-492.457622
Energy at 298.15K-492.457478
HF Energy-492.406009
Nuclear repulsion energy36.488510
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/STO-3G
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' 3164 2759 56.75      
2 A' 1355 1182 16.79      
3 A' 887 774 107.43      

Unscaled Zero Point Vibrational Energy (zpe) 2703.2 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 2357.0 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 MP2/STO-3G
ABC
14.17997 0.53218 0.51293

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.048 1.276 0.000
Cl2 0.048 -0.535 0.000
H3 -1.094 1.447 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.81101.1541
Cl21.81102.2876
H31.15412.2876

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 98.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-492.478600
Energy at 298.15K-492.478444
HF Energy-492.446920
Nuclear repulsion energy36.979479
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/STO-3G
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' 3509 3060 1.73      
2 A' 1106 965 11.95      
3 A' 945 824 32.59      

Unscaled Zero Point Vibrational Energy (zpe) 2780.5 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 2424.3 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 MP2/STO-3G
ABC
21.90471 0.53436 0.52164

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.039 1.228 0.000
Cl2 0.039 -0.540 0.000
H3 -0.900 1.806 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.76731.1030
Cl21.76732.5270
H31.10302.5270

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 121.644
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability