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

using model chemistry: CCSD(T)/TZVP

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

Conformer 2 (C2)

Jump to S1C1
Energy calculated at CCSD(T)/TZVP
 hartrees
Energy at 0K-997.748660
Energy at 298.15K-997.753535
HF Energy-997.103441
Nuclear repulsion energy201.231164
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)/TZVP
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 3169 3050        
2 A 3109 2992        
3 A 1485 1430        
4 A 1384 1332        
5 A 1245 1198        
6 A 1072 1032        
7 A 977 940        
8 A 676 651        
9 A 270 260        
10 A 122 117        
11 B 3181 3062        
12 B 3100 2984        
13 B 1479 1423        
14 B 1361 1310        
15 B 1180 1135        
16 B 914 880        
17 B 702 676        
18 B 415 399        

Unscaled Zero Point Vibrational Energy (zpe) 12919.5 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 12435.1 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)/TZVP
ABC
0.33058 0.07349 0.06391

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.299 0.695 0.899
C2 -0.299 -0.695 0.899
Cl3 -0.299 1.698 -0.473
Cl4 0.299 -1.698 -0.473
H5 0.007 1.206 1.817
H6 1.384 0.655 0.827
H7 -0.007 -1.206 1.817
H8 -1.384 -0.655 0.827

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.51281.80162.75871.09061.08842.13302.1584
C21.51282.75871.80162.13302.15841.09061.0884
Cl31.80162.75873.44902.36262.36843.71012.8994
Cl42.75871.80163.44903.71012.89942.36262.3684
H51.09062.13302.36263.71011.78332.41152.5256
H61.08842.15842.36842.89941.78332.52563.0622
H72.13301.09063.71012.36262.41152.52561.7833
H82.15841.08842.89942.36842.52563.06221.7833

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 112.385 C1 C2 H7 108.948
C1 C2 H8 111.101 C2 C1 Cl3 112.385
C2 C1 H5 108.948 C2 C1 H6 111.101
Cl3 C1 H5 106.965 Cl3 C1 H6 107.491
Cl4 C2 H7 106.965 Cl4 C2 H8 107.491
H5 C1 H6 109.850 H7 C2 H8 109.850
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability