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

using model chemistry: QCISD/cc-pVDZ

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

Conformer 2 (C2)

Jump to S1C1
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-997.681489
Energy at 298.15K-997.686354
HF Energy-997.076041
Nuclear repulsion energy201.079655
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 QCISD/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3171 3043 1.80      
2 A 3112 2986 26.91      
3 A 1478 1418 0.22      
4 A 1356 1301 21.30      
5 A 1240 1190 0.97      
6 A 1074 1030 1.21      
7 A 973 934 8.85      
8 A 686 658 17.12      
9 A 265 255 0.65      
10 A 120 115 0.84      
11 B 3182 3053 7.90      
12 B 3102 2976 4.75      
13 B 1472 1413 7.54      
14 B 1328 1274 39.17      
15 B 1168 1121 0.91      
16 B 909 872 14.19      
17 B 712 683 21.34      
18 B 416 399 6.68      

Unscaled Zero Point Vibrational Energy (zpe) 12881.4 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 12358.5 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 QCISD/cc-pVDZ
ABC
0.32962 0.07359 0.06398

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.297 0.701 0.898
C2 -0.297 -0.701 0.898
Cl3 -0.297 1.696 -0.473
Cl4 0.297 -1.696 -0.473
H5 0.004 1.218 1.827
H6 1.396 0.664 0.833
H7 -0.004 -1.218 1.827
H8 -1.396 -0.664 0.833

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.52241.79612.76141.10311.10132.15302.1759
C21.52242.76141.79612.15302.17591.10311.1013
Cl31.79612.76143.44392.36912.37503.72432.9124
Cl42.76141.79613.44393.72432.91242.36912.3750
H51.10312.15302.36913.72431.79822.43602.5477
H61.10132.17592.37502.91241.79822.54773.0919
H72.15301.10313.72432.36912.43602.54771.7982
H82.17591.10132.91242.37502.54773.09191.7982

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 112.375 C1 C2 H7 109.135
C1 C2 H8 111.040 C2 C1 Cl3 112.375
C2 C1 H5 109.135 C2 C1 H6 111.040
Cl3 C1 H5 107.169 Cl3 C1 H6 107.685
Cl4 C2 H7 107.169 Cl4 C2 H8 107.685
H5 C1 H6 109.324 H7 C2 H8 109.324
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability