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

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

Conformer 2 (C2)

Jump to S1C1
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-992.862302
Energy at 298.15K-992.867209
HF Energy-992.434376
Nuclear repulsion energy201.114724
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 CID/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 3243 3018 0.23      
2 A 3190 2968 13.02      
3 A 1583 1473 0.33      
4 A 1430 1331 16.40      
5 A 1313 1222 0.86      
6 A 1071 997 0.00      
7 A 996 927 14.67      
8 A 670 624 20.68      
9 A 275 256 0.96      
10 A 118 110 1.17      
11 B 3256 3030 2.00      
12 B 3180 2959 2.37      
13 B 1589 1478 16.29      
14 B 1425 1326 27.32      
15 B 1257 1169 0.90      
16 B 953 887 17.59      
17 B 698 650 24.48      
18 B 435 405 8.28      

Unscaled Zero Point Vibrational Energy (zpe) 13341.8 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 12414.5 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 CID/3-21G*
ABC
0.32594 0.07396 0.06416

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.302 0.701 0.907
C2 -0.302 -0.701 0.907
Cl3 -0.302 1.690 -0.476
Cl4 0.302 -1.690 -0.476
H5 0.014 1.220 1.819
H6 1.385 0.658 0.831
H7 -0.014 -1.220 1.819
H8 -1.385 -0.658 0.831

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.52781.80462.76291.08801.08572.15032.1678
C21.52782.76291.80462.15032.16781.08801.0857
Cl31.80462.76293.43422.36392.37093.71752.8971
Cl42.76291.80463.43423.71752.89712.36392.3709
H51.08802.15032.36393.71751.78062.44022.5411
H61.08572.16782.37092.89711.78062.54113.0657
H72.15031.08803.71752.36392.44022.54111.7806
H82.16781.08572.89712.37092.54113.06571.7806

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 111.745 C1 C2 H7 109.432
C1 C2 H8 110.954 C2 C1 Cl3 111.745
C2 C1 H5 109.432 C2 C1 H6 110.954
Cl3 C1 H5 107.000 Cl3 C1 H6 107.615
Cl4 C2 H7 107.000 Cl4 C2 H8 107.615
H5 C1 H6 110.001 H7 C2 H8 110.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability