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

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-1195.606529
Energy at 298.15K-1195.610117
HF Energy-1194.717126
Nuclear repulsion energy377.494496
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 MP3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3202 3005 0.89      
2 A 1459 1370 7.94      
3 A 1367 1283 27.29      
4 A 1187 1114 130.32      
5 A 1134 1064 104.01      
6 A 882 828 72.34      
7 A 475 446 0.53      
8 A 323 303 1.36      
9 A 169 158 0.68      
10 A 86 81 0.75      
11 B 3212 3015 11.70      
12 B 1401 1315 9.80      
13 B 1294 1215 26.97      
14 B 1153 1082 21.68      
15 B 874 821 107.09      
16 B 444 417 12.58      
17 B 400 376 9.45      
18 B 348 326 13.53      

Unscaled Zero Point Vibrational Energy (zpe) 9704.8 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 9108.9 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 MP3/6-31G*
ABC
0.09862 0.06026 0.03883

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.231 0.726 0.390
C2 0.231 -0.726 0.390
H3 -1.318 0.793 0.364
H4 1.318 -0.793 0.364
F5 0.231 1.278 1.552
F6 -0.231 -1.278 1.552
Cl7 0.435 1.621 -0.981
Cl8 -0.435 -1.621 -0.981

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52291.09012.16961.36712.31661.76682.7249
C21.52292.16961.09012.31661.36712.72491.7668
H31.09012.16963.07722.01112.62372.35982.9011
H42.16961.09013.07722.62372.01112.90112.3598
F51.36712.31662.01112.62372.59762.56373.9065
F62.31661.36712.62372.01112.59763.90652.5637
Cl71.76682.72492.35982.90112.56373.90653.3564
Cl82.72491.76682.90112.35983.90652.56373.3564

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 111.179 C1 C2 F6 106.435
C1 C2 Cl8 111.634 C2 C1 H3 111.179
C2 C1 F5 106.435 C2 C1 Cl7 111.634
H3 C1 F5 109.345 H3 C1 Cl7 109.071
H4 C2 F6 109.345 H4 C2 Cl8 109.071
F5 C1 Cl7 109.112 F6 C2 Cl8 109.112
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability