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

using model chemistry: MP4/cc-pVTZ

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 MP4/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP4/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVTZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at MP4/cc-pVTZ
 hartrees
Energy at 0K-997.940186
Energy at 298.15K-997.945030
HF Energy-997.132182
Nuclear repulsion energy202.335596
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 MP4/cc-pVTZ
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 3145 3048        
2 A 3088 2993        
3 A 1476 1431        
4 A 1342 1301        
5 A 1228 1190        
6 A 1059 1026        
7 A 963 933        
8 A 679 658        
9 A 263 255        
10 A 118 115        
11 B 3157 3060        
12 B 3081 2986        
13 B 1473 1428        
14 B 1319 1278        
15 B 1164 1128        
16 B 902 874        
17 B 704 682        
18 B 409 397        

Unscaled Zero Point Vibrational Energy (zpe) 12784.3 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 12390.5 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 MP4/cc-pVTZ
ABC
0.33056 0.07487 0.06495

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.298 0.696 0.900
C2 -0.298 -0.696 0.900
Cl3 -0.298 1.681 -0.473
Cl4 0.298 -1.681 -0.473
H5 0.008 1.215 1.813
H6 1.383 0.658 0.829
H7 -0.008 -1.215 1.813
H8 -1.383 -0.658 0.829

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.51331.79132.74401.09011.08802.13942.1595
C21.51332.74401.79132.13942.15951.09011.0880
Cl31.79132.74403.41342.35292.35893.70032.8883
Cl42.74401.79133.41343.70032.88832.35292.3589
H51.09012.13942.35293.70031.78042.42952.5320
H61.08802.15952.35892.88831.78042.53203.0634
H72.13941.09013.70032.35292.42952.53201.7804
H82.15951.08802.88832.35892.53203.06341.7804

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 111.995 C1 C2 H7 109.449
C1 C2 H8 111.174 C2 C1 Cl3 111.995
C2 C1 H5 109.449 C2 C1 H6 111.174
Cl3 C1 H5 106.960 Cl3 C1 H6 107.495
Cl4 C2 H7 106.960 Cl4 C2 H8 107.495
H5 C1 H6 109.653 H7 C2 H8 109.653
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability