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

using model chemistry: G3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
1 2 no C2 1A

Conformer 1 (C2H)

Jump to S1C2
Energy calculated at G3
 hartrees
Energy at 0K-998.649343
Energy at 298.15K-998.643437
Nuclear repulsion energy194.751520
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 HF/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3303 3112 0.00      
2 Ag 1641 1546 0.00      
3 Ag 1496 1409 0.00      
4 Ag 1139 1073 0.00      
5 Ag 838 790 0.00      
6 Ag 324 305 0.00      
7 Au 3384 3188 7.35      
8 Au 1269 1195 1.12      
9 Au 840 791 1.70      
10 Au 128 120 9.27      
11 Bg 3362 3168 0.00      
12 Bg 1424 1341 0.00      
13 Bg 1117 1053 0.00      
14 Bu 3309 3118 23.78      
15 Bu 1638 1544 7.98      
16 Bu 1400 1319 58.90      
17 Bu 781 736 140.32      
18 Bu 236 223 11.42      

Unscaled Zero Point Vibrational Energy (zpe) 13813.8 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 13015.4 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 MP2=FULL/6-31G*
ABC
0.98082 0.05046 0.04888

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.757 0.000
C2 0.000 -0.757 0.000
Cl3 -1.682 1.348 0.000
Cl4 1.682 -1.348 0.000
H5 0.495 1.147 0.889
H6 0.495 1.147 -0.889
H7 -0.495 -1.147 0.889
H8 -0.495 -1.147 -0.889

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.51331.78282.69391.08971.08972.15842.1584
C21.51332.69391.78282.15842.15841.08971.0897
Cl31.78282.69394.31052.36042.36042.90172.9017
Cl42.69391.78284.31052.90172.90172.36042.3604
H51.08972.15842.36042.90171.77742.49873.0663
H61.08972.15842.36042.90171.77743.06632.4987
H72.15841.08972.90172.36042.49873.06631.7774
H82.15841.08972.90172.36043.06632.49871.7774

picture of Ethane, 1,2-dichloro- state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at G3
 hartrees
Energy at 0K-998.647474
Energy at 298.15K-998.652706
HF Energy-997.027890
Nuclear repulsion energy201.846377
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 HF/6-31G*
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 3347 3154 1.22      
2 A 3290 3100 32.35      
3 A 1627 1533 0.01      
4 A 1493 1407 32.40      
5 A 1360 1282 0.82      
6 A 1138 1072 0.50      
7 A 1043 982 15.82      
8 A 716 674 31.47      
9 A 281 264 0.88      
10 A 122 115 1.43      
11 B 3359 3165 8.12      
12 B 3279 3089 4.70      
13 B 1621 1527 9.12      
14 B 1467 1382 58.44      
15 B 1285 1211 0.88      
16 B 988 931 19.53      
17 B 747 704 42.25      
18 B 443 417 9.75      

Unscaled Zero Point Vibrational Energy (zpe) 13802.5 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 13004.7 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 MP2=FULL/6-31G*
ABC
0.33522 0.07496 0.06512

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.293 0.697 0.891
C2 -0.293 -0.697 0.891
Cl3 -0.293 1.681 -0.470
Cl4 0.293 -1.681 -0.470
H5 -0.002 1.205 1.812
H6 1.381 0.661 0.834
H7 0.002 -1.205 1.812
H8 -1.381 -0.661 0.834

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.51191.77842.73941.09211.09022.13282.1560
C21.51192.73941.77842.13282.15601.09211.0902
Cl31.77842.73943.41182.34912.35423.69032.8927
Cl42.73941.77843.41183.69032.89272.34912.3542
H51.09212.13282.34913.69031.77842.40922.5177
H61.09022.15602.35422.89271.77842.51773.0619
H72.13281.09213.69032.34912.40922.51771.7784
H82.15601.09022.89272.35422.51773.06191.7784

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 112.923 C1 C2 H7 108.961
C1 C2 H8 111.367 C2 C1 Cl3 112.923
C2 C1 H5 108.961 C2 C1 H6 111.367
Cl3 C1 H5 106.722 Cl3 C1 H6 107.415
Cl4 C2 H7 106.722 Cl4 C2 H8 107.415
H5 C1 H6 109.300 H7 C2 H8 109.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability