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All results from a given calculation for CHFClCHClF (ethane, 1,2-dichloro-1,2-difluoro-)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CI 1AG
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-1189.736109
Energy at 298.15K-1189.739459
HF Energy-1189.053473
Nuclear repulsion energy371.273995
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 MP2/3-21G*
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 3196 3040 0.00      
2 Ag 1447 1377 0.00      
3 Ag 1380 1313 0.00      
4 Ag 1122 1068 0.00      
5 Ag 1063 1012 0.00      
6 Ag 822 782 0.00      
7 Ag 496 472 0.00      
8 Ag 362 344 0.00      
9 Ag 271 258 0.00      
10 Au 3210 3054 8.20      
11 Au 1370 1303 29.57      
12 Au 1317 1253 24.05      
13 Au 1133 1078 130.09      
14 Au 756 719 206.37      
15 Au 379 360 5.14      
16 Au 352 335 33.50      
17 Au 166 158 2.67      
18 Au 69 65 1.10      

Unscaled Zero Point Vibrational Energy (zpe) 9455.3 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 8994.8 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 MP2/3-21G*
ABC
0.12851 0.04870 0.03649

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.765
C2 0.000 0.000 0.765
H3 1.016 0.000 -1.150
H4 -1.016 0.000 1.150
F5 -0.711 -1.126 -1.204
F6 0.711 1.126 1.204
Cl7 -0.810 1.492 -1.347
Cl8 0.810 -1.492 1.347

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52921.08712.16801.40262.37711.79452.7090
C21.52922.16801.08712.37711.40262.70901.7945
H31.08712.16803.07012.06292.62792.36642.9159
H42.16801.08713.07012.62792.06292.91592.3664
F51.40262.37712.06292.62793.59122.62352.9926
F62.37711.40262.62792.06293.59122.99262.6235
Cl71.79452.70902.36642.91592.62352.99264.3335
Cl82.70901.79452.91592.36642.99262.62354.3335

picture of ethane, 1,2-dichloro-1,2-difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 110.786 C1 C2 F6 108.272
C1 C2 Cl8 108.923 C2 C1 H3 110.786
C2 C1 F5 108.272 C2 C1 Cl7 108.923
H3 C1 F5 111.273 H3 C1 Cl7 107.880
H4 C2 F6 111.273 H4 C2 Cl8 107.880
F5 C1 Cl7 109.679 F6 C2 Cl8 109.679
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability