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All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-498.228250
Energy at 298.15K-498.228114
HF Energy-497.853602
Nuclear repulsion energy38.541465
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 CCSD(T)/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 2836        
2 A' 1224 1193        
3 A' 816 796        

Unscaled Zero Point Vibrational Energy (zpe) 2474.5 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 2412.2 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 CCSD(T)/cc-pVTZ
ABC
15.74636 0.59506 0.57339

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.045 1.199 0.000
Cl2 0.045 -0.507 0.000
H3 -1.042 1.428 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.70651.1107
Cl21.70652.2194
H31.11072.2194

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 101.875
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-498.219464
Energy at 298.15K-498.219316
HF Energy-497.878356
Nuclear repulsion energy38.892305
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 CCSD(T)/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' 979 955        
2 A' 888 865        
3 A' 3203 3122        

Unscaled Zero Point Vibrational Energy (zpe) 2534.8 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 2470.9 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 CCSD(T)/cc-pVTZ
ABC
25.65638 0.59112 0.57781

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.036 1.156 0.000
Cl2 0.036 -0.514 0.000
H3 -0.837 1.797 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.67021.0825
Cl21.67022.4698
H31.08252.4698

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 126.254
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability