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

using model chemistry: MP4/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CI 1AG
Energy calculated at MP4/TZVP
 hartrees
Energy at 0K-1195.922078
Energy at 298.15K-1195.925552
HF Energy-1194.876186
Nuclear repulsion energy374.058887
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/TZVP
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 3149 3032        
2 Ag 1421 1368        
3 Ag 1351 1301        
4 Ag 1131 1089        
5 Ag 1079 1039        
6 Ag 845 813        
7 Ag 516 497        
8 Ag 375 361        
9 Ag 269 259        
10 Au 3161 3044        
11 Au 1343 1293        
12 Au 1267 1220        
13 Au 1105 1064        
14 Au 787 758        
15 Au 402 387        
16 Au 376 362        
17 Au 171 165        
18 Au 72 69        

Unscaled Zero Point Vibrational Energy (zpe) 9410.8 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 9061.6 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/TZVP
ABC
0.13298 0.04871 0.03682

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.764
C2 0.000 0.000 0.764
H3 1.015 0.000 -1.159
H4 -1.015 0.000 1.159
F5 -0.660 -1.113 -1.207
F6 0.660 1.113 1.207
Cl7 -0.841 1.459 -1.360
Cl8 0.841 -1.459 1.360

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52721.08932.17441.36752.35761.78612.7099
C21.52722.17441.08932.35761.36752.70991.7861
H31.08932.17443.08172.01102.63942.36882.9163
H42.17441.08933.08172.63942.01102.91632.3688
F51.36752.35762.01102.63943.53902.58232.9936
F62.35761.36752.63942.01103.53902.99362.5823
Cl71.78612.70992.36882.91632.58232.99364.3284
Cl82.70991.78612.91632.36882.99362.58234.3284

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 111.308 C1 C2 F6 108.940
C1 C2 Cl8 109.499 C2 C1 H3 111.308
C2 C1 F5 108.940 C2 C1 Cl7 109.499
H3 C1 F5 109.353 H3 C1 Cl7 108.496
H4 C2 F6 109.353 H4 C2 Cl8 108.496
F5 C1 Cl7 109.217 F6 C2 Cl8 109.217
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability