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

using model chemistry: QCISD(T)=FULL/cc-pVDZ

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

Conformer 2 (C2)

Jump to S1C1
Energy calculated at QCISD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-997.713043
Energy at 298.15K-997.717886
HF Energy-997.075948
Nuclear repulsion energy201.019653
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)=FULL/cc-pVDZ
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 3160 3030        
2 A 3099 2972        
3 A 1468 1408        
4 A 1343 1287        
5 A 1228 1178        
6 A 1065 1021        
7 A 964 925        
8 A 678 650        
9 A 265 254        
10 A 120 115        
11 B 3171 3041        
12 B 3089 2962        
13 B 1463 1403        
14 B 1315 1261        
15 B 1157 1110        
16 B 899 862        
17 B 702 673        
18 B 412 395        

Unscaled Zero Point Vibrational Energy (zpe) 12797.7 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 12272.9 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)=FULL/cc-pVDZ
ABC
0.32795 0.07374 0.06404

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.298 0.701 0.901
C2 -0.298 -0.701 0.901
Cl3 -0.298 1.694 -0.475
Cl4 0.298 -1.694 -0.475
H5 0.003 1.220 1.830
H6 1.397 0.663 0.836
H7 -0.003 -1.220 1.830
H8 -1.397 -0.663 0.836

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.52281.79822.76191.10371.10182.15462.1763
C21.52282.76191.79822.15462.17631.10371.1018
Cl31.79822.76193.43972.37182.37753.72672.9129
Cl42.76191.79823.43973.72672.91292.37182.3775
H51.10372.15462.37183.72671.79962.44022.5482
H61.10182.17632.37752.91291.79962.54823.0927
H72.15461.10373.72672.37182.44022.54821.7996
H82.17631.10182.91292.37752.54823.09271.7996

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 112.273 C1 C2 H7 109.195
C1 C2 H8 111.009 C2 C1 Cl3 112.273
C2 C1 H5 109.195 C2 C1 H6 111.009
Cl3 C1 H5 107.194 Cl3 C1 H6 107.700
Cl4 C2 H7 107.194 Cl4 C2 H8 107.700
H5 C1 H6 109.362 H7 C2 H8 109.362
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability