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All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: MP2/6-31G(2df,p)

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 MP2/6-31G(2df,p)
 hartrees
Energy at 0K-498.115073
Energy at 298.15K-498.114950
HF Energy-497.810199
Nuclear repulsion energy38.827283
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 MP2/6-31G(2df,p)
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' 3016 2849 53.57      
2 A' 1263 1193 6.61      
3 A' 853 806 104.04      

Unscaled Zero Point Vibrational Energy (zpe) 2566.0 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 2423.5 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 MP2/6-31G(2df,p)
ABC
15.79283 0.60463 0.58234

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.045 1.190 0.000
Cl2 0.045 -0.503 0.000
H3 -1.040 1.416 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.69301.1086
Cl21.69302.2046
H31.10862.2046

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 101.762
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-498.112608
Energy at 298.15K-498.112469
HF Energy-497.835546
Nuclear repulsion energy38.992955
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 MP2/6-31G(2df,p)
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' 3290 3108 8.70      
2 A' 1013 957 0.81      
3 A' 907 857 48.36      

Unscaled Zero Point Vibrational Energy (zpe) 2605.1 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 2460.5 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 MP2/6-31G(2df,p)
ABC
25.44141 0.59455 0.58097

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.037 1.154 0.000
Cl2 0.037 -0.512 0.000
H3 -0.840 1.787 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.66601.0810
Cl21.66602.4603
H31.08102.4603

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 125.840
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability