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All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: MP2/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 MP2/cc-pVTZ
 hartrees
Energy at 0K-498.179894
Energy at 298.15K-498.179771
HF Energy-497.853647
Nuclear repulsion energy38.944052
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/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' 2983 2832 61.56      
2 A' 1244 1181 9.13      
3 A' 853 810 99.17      

Unscaled Zero Point Vibrational Energy (zpe) 2539.7 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 2411.5 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 MP2/cc-pVTZ
ABC
15.95251 0.60813 0.58579

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.045 1.186 0.000
Cl2 0.045 -0.502 0.000
H3 -1.035 1.418 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.68741.1051
Cl21.68742.2031
H31.10512.2031

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 102.154
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP2/cc-pVTZ
 hartrees
Energy at 0K-498.175968
Energy at 298.15K-498.175830
HF Energy-497.878280
Nuclear repulsion energy39.076914
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/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' 3259 3094 6.91      
2 A' 1009 958 0.76      
3 A' 906 860 50.44      

Unscaled Zero Point Vibrational Energy (zpe) 2586.9 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 2456.3 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/cc-pVTZ
ABC
25.82827 0.59685 0.58337

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.036 1.151 0.000
Cl2 0.036 -0.511 0.000
H3 -0.834 1.788 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.66211.0787
Cl21.66212.4588
H31.07872.4588

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 126.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability