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All results from a given calculation for CH2ClCH2Cl (Ethane, 1,2-dichloro-)

using model chemistry: CCSD(T)/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2 1A

Conformer 1 (C2H)

Jump to S1C2
Vibrational Frequencies calculated at CCSD(T)/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVTZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-997.939113
Energy at 298.15K-997.943958
HF Energy-997.132226
Nuclear repulsion energy202.257616
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 3147 3068        
2 A 3093 3015        
3 A 1479 1442        
4 A 1346 1312        
5 A 1231 1199        
6 A 1061 1034        
7 A 964 939        
8 A 679 661        
9 A 263 256        
10 A 118 115        
11 B 3160 3080        
12 B 3085 3007        
13 B 1476 1438        
14 B 1322 1289        
15 B 1166 1137        
16 B 903 881        
17 B 703 685        
18 B 410 400        

Unscaled Zero Point Vibrational Energy (zpe) 12801.3 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 12478.7 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
0.33126 0.07467 0.06484

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.299 0.695 0.898
C2 -0.299 -0.695 0.898
Cl3 -0.299 1.683 -0.472
Cl4 0.299 -1.683 -0.472
H5 0.010 1.214 1.812
H6 1.383 0.658 0.825
H7 -0.010 -1.214 1.812
H8 -1.383 -0.658 0.825

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.51341.79172.74481.08951.08752.13882.1593
C21.51342.74481.79172.13882.15931.08951.0875
Cl31.79172.74483.41852.35242.35853.70022.8874
Cl42.74481.79173.41853.70022.88742.35242.3585
H51.08952.13882.35243.70021.77972.42742.5329
H61.08752.15932.35852.88741.77972.53293.0625
H72.13881.08953.70022.35242.42742.53291.7797
H82.15931.08752.88742.35852.53293.06251.7797

picture of Ethane, 1,2-dichloro- state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl4 112.026 C1 C2 H7 109.434
C1 C2 H8 111.193 C2 C1 Cl3 112.026
C2 C1 H5 109.434 C2 C1 H6 111.193
Cl3 C1 H5 106.924 Cl3 C1 H6 107.470
Cl4 C2 H7 106.924 Cl4 C2 H8 107.470
H5 C1 H6 109.677 H7 C2 H8 109.677
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability