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

using model chemistry: MP2/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-89.593863
Energy at 298.15K-89.597076
HF Energy-89.095279
Nuclear repulsion energy131.161065
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/CEP-121G
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 3147 3072 0.00      
2 Ag 1391 1358 0.00      
3 Ag 1302 1271 0.00      
4 Ag 1120 1094 0.00      
5 Ag 962 939 0.00      
6 Ag 791 772 0.00      
7 Ag 472 461 0.00      
8 Ag 345 337 0.00      
9 Ag 253 247 0.00      
10 Au 3157 3081 6.37      
11 Au 1277 1246 21.71      
12 Au 1250 1220 26.15      
13 Au 980 957 201.04      
14 Au 733 716 157.17      
15 Au 364 355 9.01      
16 Au 344 336 43.90      
17 Au 162 158 2.00      
18 Au 64 63 1.36      

Unscaled Zero Point Vibrational Energy (zpe) 9057.9 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 8840.5 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 MP2/CEP-121G
ABC
0.12354 0.04516 0.03416

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.773
C2 0.000 0.000 0.773
H3 1.004 0.000 -1.209
H4 -1.004 0.000 1.209
F5 -0.689 -1.202 -1.211
F6 0.689 1.202 1.211
Cl7 -0.944 1.463 -1.424
Cl8 0.944 -1.463 1.424

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.54691.09422.22191.45262.41981.85842.8032
C21.54692.22191.09422.41981.45262.80321.8584
H31.09422.22193.14252.07582.71982.44533.0122
H42.22191.09423.14252.71982.07583.01222.4453
F51.45262.41982.07582.71983.67932.68563.1099
F62.41981.45262.71982.07583.67933.10992.6856
Cl71.85842.80322.44533.01222.68563.10994.4978
Cl82.80321.85843.01222.44533.10992.68564.4978

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 113.442 C1 C2 F6 107.510
C1 C2 Cl8 110.480 C2 C1 H3 113.442
C2 C1 F5 107.510 C2 C1 Cl7 110.480
H3 C1 F5 108.371 H3 C1 Cl7 109.073
H4 C2 F6 108.371 H4 C2 Cl8 109.073
F5 C1 Cl7 107.783 F6 C2 Cl8 107.783
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability