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

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

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

Conformer 1 (C2H)

Jump to S1C2
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-997.624967
Energy at 298.15K 
HF Energy-997.036847
Nuclear repulsion energy194.948730
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 MP3/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP3/6-31+G**
ABC
0.98453 0.05019 0.04863

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.472 0.593 0.000
C2 -0.472 -0.593 0.000
Cl3 -0.472 2.110 0.000
Cl4 0.472 -2.110 0.000
H5 1.100 0.588 0.884
H6 1.100 0.588 -0.884
H7 -1.100 -0.588 0.884
H8 -1.100 -0.588 -0.884

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.51591.78652.70361.08411.08412.15562.1556
C21.51592.70361.78652.15562.15561.08411.0841
Cl31.78652.70364.32482.35932.35932.90842.9084
Cl42.70361.78654.32482.90842.90842.35932.3593
H51.08412.15562.35932.90841.76762.49433.0571
H61.08412.15562.35932.90841.76763.05712.4943
H72.15561.08412.90842.35932.49433.05711.7676
H82.15561.08412.90842.35933.05712.49431.7676

picture of Ethane, 1,2-dichloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl4 109.634 C1 C2 H7 110.914
C1 C2 H8 110.914 C2 C1 Cl3 109.634
C2 C1 H5 110.914 C2 C1 H6 110.914
Cl3 C1 H5 108.034 Cl3 C1 H6 108.034
Cl4 C2 H7 108.034 Cl4 C2 H8 108.034
H5 C1 H6 109.218 H7 C2 H8 109.218
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-997.629182
Energy at 298.15K-997.634099
HF Energy-997.035594
Nuclear repulsion energy202.384339
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 MP3/6-31+G**
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 3245 3019 1.42      
2 A 3186 2964 23.58      
3 A 1527 1421 0.02      
4 A 1414 1315 24.32      
5 A 1278 1189 1.01      
6 A 1098 1022 0.46      
7 A 1007 937 8.73      
8 A 705 656 16.86      
9 A 268 249 0.58      
10 A 120 112 0.90      
11 B 3256 3030 5.31      
12 B 3178 2957 4.21      
13 B 1521 1415 11.34      
14 B 1394 1297 43.73      
15 B 1209 1125 1.47      
16 B 939 873 15.61      
17 B 734 683 20.35      
18 B 423 394 6.89      

Unscaled Zero Point Vibrational Energy (zpe) 13250.4 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 12329.5 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 MP3/6-31+G**
ABC
0.33430 0.07438 0.06463

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.293 0.698 0.893
C2 -0.293 -0.698 0.893
Cl3 -0.293 1.688 -0.471
Cl4 0.293 -1.688 -0.471
H5 -0.007 1.202 1.809
H6 1.376 0.666 0.840
H7 0.007 -1.202 1.809
H8 -1.376 -0.666 0.840

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.51451.78422.74911.08711.08542.12902.1562
C21.51452.74911.78422.12902.15621.08711.0854
Cl31.78422.74913.42632.34902.35523.69352.9040
Cl42.74911.78423.42633.69352.90402.34902.3552
H51.08712.12902.34903.69351.77182.40422.5111
H61.08542.15622.35522.90401.77182.51113.0576
H72.12901.08713.69352.34902.40422.51111.7718
H82.15621.08542.90402.35522.51113.05761.7718

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 112.637 C1 C2 H7 108.725
C1 C2 H8 110.977 C2 C1 Cl3 112.637
C2 C1 H5 108.725 C2 C1 H6 110.977
Cl3 C1 H5 107.289 Cl3 C1 H6 107.821
Cl4 C2 H7 107.289 Cl4 C2 H8 107.821
H5 C1 H6 109.286 H7 C2 H8 109.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability