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All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: MP4/aug-cc-pVTZ

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 MP4/aug-cc-pVTZ
 hartrees
Energy at 0K-498.234920
Energy at 298.15K-498.234784
HF Energy-497.854883
Nuclear repulsion energy38.594303
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 MP4/aug-cc-pVTZ
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' 2909 2831        
2 A' 1228 1195        
3 A' 812 791        

Unscaled Zero Point Vibrational Energy (zpe) 2474.5 cm-1
Scaled (by 0.9732) Zero Point Vibrational Energy (zpe) 2408.2 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 MP4/aug-cc-pVTZ
ABC
15.71912 0.59695 0.57511

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.045 1.197 0.000
Cl2 0.045 -0.506 0.000
H3 -1.043 1.425 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.70391.1113
Cl21.70392.2163
H31.11132.2163

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 101.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP4/aug-cc-pVTZ
 hartrees
Energy at 0K-498.224791
Energy at 298.15K-498.224643
HF Energy-497.879246
Nuclear repulsion energy38.923111
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 MP4/aug-cc-pVTZ
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' 3211 3125        
2 A' 980 954        
3 A' 886 862        

Unscaled Zero Point Vibrational Energy (zpe) 2538.5 cm-1
Scaled (by 0.9732) Zero Point Vibrational Energy (zpe) 2470.5 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 MP4/aug-cc-pVTZ
ABC
25.72936 0.59204 0.57873

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.036 1.155 0.000
Cl2 0.036 -0.513 0.000
H3 -0.835 1.796 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.66881.0821
Cl21.66882.4688
H31.08212.4688

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 126.326
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability