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All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: CCSD/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 CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-498.126267
Energy at 298.15K-498.126129
HF Energy-497.832158
Nuclear repulsion energy38.134364
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/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' 2919 2812 65.76      
2 A' 1232 1187 5.18      
3 A' 806 776 105.95      

Unscaled Zero Point Vibrational Energy (zpe) 2478.3 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 2387.6 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/aug-cc-pVDZ
ABC
15.32893 0.58281 0.56147

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.046 1.212 0.000
Cl2 0.046 -0.512 0.000
H3 -1.055 1.438 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.72481.1243
Cl21.72482.2403
H31.12432.2403

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 101.599
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-498.120125
Energy at 298.15K-498.119975
HF Energy-497.855222
Nuclear repulsion energy38.405028
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/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' 981 945 0.72      
2 A' 878 846 43.47      
3 A' 3203 3085 5.30      

Unscaled Zero Point Vibrational Energy (zpe) 2530.9 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 2438.3 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 CCSD/aug-cc-pVDZ
ABC
24.71669 0.57668 0.56353

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.037 1.172 0.000
Cl2 0.037 -0.520 0.000
H3 -0.852 1.813 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.69171.0963
Cl21.69172.4968
H31.09632.4968

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 125.813
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability