return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/6-31G

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=FULL/6-31G
 hartrees
Energy at 0K-1195.104700
Energy at 298.15K-1195.107972
HF Energy-1194.577239
Nuclear repulsion energy363.088234
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=FULL/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 3219 3059 0.00      
2 Ag 1424 1353 0.00      
3 Ag 1340 1273 0.00      
4 Ag 1153 1096 0.00      
5 Ag 1033 981 0.00      
6 Ag 785 746 0.00      
7 Ag 491 467 0.00      
8 Ag 349 331 0.00      
9 Ag 258 246 0.00      
10 Au 3231 3070 3.11      
11 Au 1326 1260 20.64      
12 Au 1276 1213 33.13      
13 Au 1059 1006 162.21      
14 Au 721 685 179.76      
15 Au 369 351 8.65      
16 Au 353 335 39.16      
17 Au 166 157 2.44      
18 Au 74 70 1.11      

Unscaled Zero Point Vibrational Energy (zpe) 9313.6 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 8848.8 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=FULL/6-31G
ABC
0.12669 0.04568 0.03466

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.759
C2 0.000 0.000 0.759
H3 1.000 0.000 -1.190
H4 -1.000 0.000 1.190
F5 -0.718 -1.150 -1.203
F6 0.718 1.150 1.203
Cl7 -0.888 1.512 -1.394
Cl8 0.888 -1.512 1.394

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.51861.08872.19101.42602.38491.86422.7763
C21.51862.19101.08872.38491.42602.77631.8642
H31.08872.19103.10892.06662.67022.42672.9957
H42.19101.08873.10892.67022.06662.99572.4267
F51.42602.38492.06662.67023.62442.67353.0742
F62.38491.42602.67022.06663.62443.07422.6735
Cl71.86422.77632.42672.99572.67353.07424.4789
Cl82.77631.86422.99572.42673.07422.67354.4789

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 113.324 C1 C2 F6 108.134
C1 C2 Cl8 109.890 C2 C1 H3 113.324
C2 C1 F5 108.134 C2 C1 Cl7 109.890
H3 C1 F5 109.806 H3 C1 Cl7 107.612
H4 C2 F6 109.806 H4 C2 Cl8 107.612
F5 C1 Cl7 107.951 F6 C2 Cl8 107.951
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability