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All results from a given calculation for CF2ClCF2Cl (1,2-Dichloro-1,1,2,2-tetrafluoroethane)

using model chemistry: CISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at CISD/3-21G*
 hartrees
Energy at 0K-1386.476435
Energy at 298.15K-1386.478598
HF Energy-1385.696468
Nuclear repulsion energy611.140432
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 CISD/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 Ag 1322 1235 0.00      
2 Ag 1125 1051 0.00      
3 Ag 705 659 0.00      
4 Ag 450 420 0.00      
5 Ag 361 337 0.00      
6 Ag 274 256 0.00      
7 Au 1337 1249 253.21      
8 Au 377 352 2.83      
9 Au 213 199 3.77      
10 Au 62 58 0.49      
11 Bg 1303 1217 0.00      
12 Bg 546 511 0.00      
13 Bg 326 305 0.00      
14 Bu 1220 1140 304.25      
15 Bu 881 823 376.68      
16 Bu 597 558 22.48      
17 Bu 436 407 5.81      
18 Bu 177 165 3.68      

Unscaled Zero Point Vibrational Energy (zpe) 5854.7 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 5470.6 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 CISD/3-21G*
ABC
0.07253 0.03878 0.03514

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.245 0.726 0.000
C2 0.245 -0.726 0.000
Cl3 -1.997 0.798 0.000
Cl4 1.997 -0.798 0.000
F5 0.245 1.346 1.110
F6 0.245 1.346 -1.110
F7 -0.245 -1.346 1.110
F8 -0.245 -1.346 -1.110

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 F5 F6 F7 F8
C11.53161.75312.71021.36331.36332.35072.3507
C21.53162.71021.75312.35072.35071.36331.3633
Cl31.75312.71024.30022.56122.56122.98292.9829
Cl42.71021.75314.30022.98292.98292.56122.5612
F51.36332.35072.56122.98292.22072.73713.5247
F61.36332.35072.56122.98292.22073.52472.7371
F72.35071.36332.98292.56122.73713.52472.2207
F82.35071.36332.98292.56123.52472.73712.2207

picture of 1,2-Dichloro-1,1,2,2-tetrafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl4 111.021 C1 C2 F7 108.445
C1 C2 F8 108.445 C2 C1 Cl3 111.021
C2 C1 F5 108.445 C2 C1 F6 108.445
Cl3 C1 F5 109.910 Cl3 C1 F6 109.910
Cl4 C2 F7 109.910 Cl4 C2 F8 109.910
F5 C1 F6 109.062 F7 C2 F8 109.062
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability