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

using model chemistry: CCD/3-21G

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 CCD/3-21G
Rotational Constants (cm-1) from geometry optimized at CCD/3-21G
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at CCD/3-21G
 hartrees
Energy at 0K-992.533083
Energy at 298.15K-992.537802
HF Energy-992.222865
Nuclear repulsion energy195.073317
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 CCD/3-21G
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 3189 3101 0.02      
2 A 3124 3037 8.04      
3 A 1536 1494 0.35      
4 A 1366 1328 14.25      
5 A 1237 1203 0.55      
6 A 1040 1011 1.31      
7 A 943 917 9.21      
8 A 603 586 14.86      
9 A 259 252 1.22      
10 A 106 103 1.35      
11 B 3201 3112 0.97      
12 B 3117 3030 1.42      
13 B 1540 1497 13.77      
14 B 1350 1313 33.37      
15 B 1180 1147 0.64      
16 B 892 868 14.97      
17 B 633 616 17.98      
18 B 398 387 8.49      

Unscaled Zero Point Vibrational Energy (zpe) 12856.5 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 12500.3 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 CCD/3-21G
ABC
0.30002 0.07010 0.06050

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.689 0.957
C2 -0.322 -0.689 0.957
Cl3 -0.322 1.739 -0.496
Cl4 0.322 -1.739 -0.496
H5 0.042 1.246 1.855
H6 1.405 0.645 0.840
H7 -0.042 -1.246 1.855
H8 -1.405 -0.645 0.840

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.52091.90452.82961.09331.09052.16452.1848
C21.52092.82961.90452.16452.18481.09331.0905
Cl31.90452.82963.53642.43002.44163.81022.9392
Cl42.82961.90453.53643.81022.93922.43002.4416
H51.09332.16452.43003.81021.80272.49392.5887
H61.09052.18482.44162.93921.80272.58873.0914
H72.16451.09333.81022.43002.49392.58871.8027
H82.18481.09052.93922.44162.58873.09141.8027

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 110.897 C1 C2 H7 110.717
C1 C2 H8 112.527 C2 C1 Cl3 110.897
C2 C1 H5 110.717 C2 C1 H6 112.527
Cl3 C1 H5 105.065 Cl3 C1 H6 106.007
Cl4 C2 H7 105.065 Cl4 C2 H8 106.007
H5 C1 H6 111.275 H7 C2 H8 111.275
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability