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All results from a given calculation for CHFClCHFCl (1,2-dichloro-1,2-difluoroethane RR)

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-1189.764666
Energy at 298.15K-1189.768049
HF Energy-1189.050215
Nuclear repulsion energy372.936982
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/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 A 3191 3025 1.56      
2 A 1445 1369 0.36      
3 A 1359 1288 26.24      
4 A 1120 1061 95.70      
5 A 1061 1006 42.31      
6 A 820 777 79.83      
7 A 439 416 2.91      
8 A 293 278 1.28      
9 A 164 155 1.40      
10 A 81 76 0.77      
11 B 3205 3039 7.08      
12 B 1387 1315 5.17      
13 B 1308 1240 21.71      
14 B 1090 1034 8.45      
15 B 792 751 107.63      
16 B 408 387 7.44      
17 B 370 351 19.71      
18 B 344 326 13.30      

Unscaled Zero Point Vibrational Energy (zpe) 9437.2 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 8946.5 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=FULL/3-21G*
ABC
0.09422 0.06028 0.03813

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.246 0.725 0.406
C2 0.246 -0.725 0.406
H3 -1.333 0.767 0.383
H4 1.333 -0.767 0.383
F5 0.246 1.313 1.587
F6 -0.246 -1.313 1.587
Cl7 0.398 1.613 -1.006
Cl8 -0.398 -1.613 -1.006

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53111.08762.17231.40852.35551.78782.7351
C21.53112.17231.08762.35551.40852.73511.7878
H31.08762.17233.07522.05972.63752.37472.9095
H42.17231.08763.07522.63752.05972.90952.3747
F51.40852.35552.05972.63752.67212.61453.9622
F62.35551.40852.63752.05972.67213.96222.6145
Cl71.78782.73512.37472.90952.61453.96223.3223
Cl82.73511.78782.90952.37473.96222.61453.3223

picture of 1,2-dichloro-1,2-difluoroethane RR state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 110.968 C1 C2 F6 106.437
C1 C2 Cl8 110.759 C2 C1 H3 110.968
C2 C1 F5 106.437 C2 C1 Cl7 110.759
H3 C1 F5 110.554 H3 C1 Cl7 108.906
H4 C2 F6 110.554 H4 C2 Cl8 108.906
F5 C1 Cl7 109.192 F6 C2 Cl8 109.192
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability