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

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

Conformer 2 (C2)

Jump to S1C1
Energy calculated at QCISD(T)/TZVP
 hartrees
Energy at 0K-997.749077
Energy at 298.15K-997.753949
HF Energy-997.103428
Nuclear repulsion energy201.195216
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(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 3167 3051        
2 A 3107 2993        
3 A 1485 1430        
4 A 1383 1332        
5 A 1244 1198        
6 A 1072 1032        
7 A 976 940        
8 A 675 651        
9 A 270 260        
10 A 122 117        
11 B 3179 3062        
12 B 3098 2984        
13 B 1478 1424        
14 B 1360 1310        
15 B 1179 1136        
16 B 913 880        
17 B 701 675        
18 B 415 399        

Unscaled Zero Point Vibrational Energy (zpe) 12912.3 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 12437.1 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 QCISD(T)/TZVP
ABC
0.33040 0.07347 0.06389

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(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 1.699 -0.473
Cl4 0.299 -1.699 -0.473
H5 0.007 1.206 1.818
H6 1.384 0.655 0.827
H7 -0.007 -1.206 1.818
H8 -1.384 -0.655 0.827

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.51311.80202.75931.09071.08852.13332.1588
C21.51312.75931.80202.13332.15881.09071.0885
Cl31.80202.75933.44942.36302.36873.71082.9000
Cl42.75931.80203.44943.71082.90002.36302.3687
H51.09072.13332.36303.71081.78362.41202.5258
H61.08852.15882.36872.90001.78362.52583.0627
H72.13331.09073.71082.36302.41202.52581.7836
H82.15881.08852.90002.36872.52583.06271.7836

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 112.383 C1 C2 H7 108.947
C1 C2 H8 111.103 C2 C1 Cl3 112.383
C2 C1 H5 108.947 C2 C1 H6 111.103
Cl3 C1 H5 106.962 Cl3 C1 H6 107.486
Cl4 C2 H7 106.962 Cl4 C2 H8 107.486
H5 C1 H6 109.858 H7 C2 H8 109.858
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability