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

using model chemistry: MP4/aug-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 MP4/6-31G*
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 3121 3049        
2 Ag 1534 1499        
3 Ag 1396 1364        
4 Ag 1095 1069        
5 Ag 806 788        
6 Ag 308 301        
7 Au 3201 3127        
8 Au 1186 1158        
9 Au 794 776        
10 Au 125 122        
11 Bg 3181 3107        
12 Bg 1330 1300        
13 Bg 1054 1029        
14 Bu 3128 3055        
15 Bu 1535 1500        
16 Bu 1303 1273        
17 Bu 759 742        
18 Bu 220 215        

Unscaled Zero Point Vibrational Energy (zpe) 13038.0 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 12736.9 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 MP4/aug-cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at MP4/aug-cc-pVDZ
 hartrees
Energy at 0K-997.746397
Energy at 298.15K-997.751196
HF Energy-997.085367
Nuclear repulsion energy200.463968
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 MP4/6-31G*
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 3168 3095        
2 A 3108 3037        
3 A 1519 1484        
4 A 1392 1360        
5 A 1267 1238        
6 A 1084 1059        
7 A 994 971        
8 A 690 674        
9 A 267 261        
10 A 121 118        
11 B 3179 3105        
12 B 3101 3029        
13 B 1515 1480        
14 B 1372 1340        
15 B 1201 1173        
16 B 928 907        
17 B 719 702        
18 B 419 409        

Unscaled Zero Point Vibrational Energy (zpe) 13022.0 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 12721.2 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/aug-cc-pVDZ
ABC
0.32470 0.07350 0.06382

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.303 0.699 0.907
C2 -0.303 -0.699 0.907
Cl3 -0.303 1.696 -0.476
Cl4 0.303 -1.696 -0.476
H5 0.010 1.227 1.830
H6 1.401 0.661 0.825
H7 -0.010 -1.227 1.830
H8 -1.401 -0.661 0.825

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 H5 H6 H7 H8
C11.52341.81022.76551.10301.10092.15812.1814
C21.52342.76551.81022.15812.18141.10301.1009
Cl31.81022.76553.44552.37442.38113.73472.9074
Cl42.76551.81023.44553.73472.90742.37442.3811
H51.10302.15812.37443.73471.80652.45372.5616
H61.10092.18142.38112.90741.80652.56163.0973
H72.15811.10303.73472.37442.45372.56161.8065
H82.18141.10092.90742.38112.56163.09731.8065

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 111.825 C1 C2 H7 109.466
C1 C2 H8 111.436 C2 C1 Cl3 111.825
C2 C1 H5 109.466 C2 C1 H6 111.436
Cl3 C1 H5 106.650 Cl3 C1 H6 107.233
Cl4 C2 H7 106.650 Cl4 C2 H8 107.233
H5 C1 H6 110.102 H7 C2 H8 110.102
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability