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All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: MP2/aug-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 MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-498.095030
Energy at 298.15K-498.094901
HF Energy-497.832323
Nuclear repulsion energy38.448393
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/aug-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' 2973 2851 59.07      
2 A' 1240 1189 6.73      
3 A' 832 798 109.18      

Unscaled Zero Point Vibrational Energy (zpe) 2522.5 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 2419.0 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/aug-cc-pVDZ
ABC
15.48748 0.59290 0.57104

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.046 1.201 0.000
Cl2 0.046 -0.508 0.000
H3 -1.050 1.431 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.70951.1198
Cl21.70952.2273
H31.11982.2273

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 101.821
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-498.091901
Energy at 298.15K-498.091758
HF Energy-497.855263
Nuclear repulsion energy38.540119
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/aug-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' 3244 3111 7.00      
2 A' 1004 963 0.80      
3 A' 889 853 51.40      

Unscaled Zero Point Vibrational Energy (zpe) 2568.7 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 2463.4 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/aug-cc-pVDZ
ABC
24.70528 0.58094 0.56759

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.037 1.168 0.000
Cl2 0.037 -0.518 0.000
H3 -0.852 1.804 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.68591.0930
Cl21.68592.4861
H31.09302.4861

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 125.575
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability