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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-992.927638
Energy at 298.15K-992.932480
HF Energy-992.433679
Nuclear repulsion energy200.287423
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 3155 3018 0.48      
2 A 3102 2967 14.00      
3 A 1547 1479 0.22      
4 A 1395 1334 14.38      
5 A 1278 1222 0.94      
6 A 1044 999 0.00      
7 A 972 930 12.29      
8 A 653 624 16.42      
9 A 268 256 0.89      
10 A 116 111 1.07      
11 B 3168 3030 3.43      
12 B 3094 2960 2.35      
13 B 1552 1485 14.45      
14 B 1391 1330 24.11      
15 B 1225 1172 0.94      
16 B 929 889 14.98      
17 B 682 652 18.75      
18 B 424 406 7.52      

Unscaled Zero Point Vibrational Energy (zpe) 12996.2 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 12430.8 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
0.32138 0.07364 0.06377

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 0.303 0.705 0.914
C2 -0.303 -0.705 0.914
Cl3 -0.303 1.693 -0.480
Cl4 0.303 -1.693 -0.480
H5 0.009 1.228 1.831
H6 1.392 0.662 0.841
H7 -0.009 -1.228 1.831
H8 -1.392 -0.662 0.841

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.53521.81272.77441.09511.09282.16222.1787
C21.53522.77441.81272.16222.17871.09511.0928
Cl31.81272.77443.44052.37732.38363.73622.9116
Cl42.77441.81273.44053.73622.91162.37732.3836
H51.09512.16222.37733.73621.79272.45622.5522
H61.09282.17872.38362.91161.79272.55223.0828
H72.16221.09513.73622.37732.45622.55221.7927
H82.17871.09282.91162.38362.55223.08281.7927

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 111.662 C1 C2 H7 109.439
C1 C2 H8 110.877 C2 C1 Cl3 111.662
C2 C1 H5 109.439 C2 C1 H6 110.877
Cl3 C1 H5 107.085 Cl3 C1 H6 107.652
Cl4 C2 H7 107.085 Cl4 C2 H8 107.652
H5 C1 H6 110.040 H7 C2 H8 110.040
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability