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

using model chemistry: MP2=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-1394.105206
Energy at 298.15K-1394.107478
HF Energy-1392.469665
Nuclear repulsion energy619.222860
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(2df,p)
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 1365 1283 0.00      
2 Ag 1101 1035 0.00      
3 Ag 727 684 0.00      
4 Ag 460 432 0.00      
5 Ag 372 350 0.00      
6 Ag 265 249 0.00      
7 Au 1286 1209 313.37      
8 Au 383 360 0.68      
9 Au 221 207 1.42      
10 Au 80 75 0.08      
11 Bg 1260 1184 0.00      
12 Bg 558 525 0.00      
13 Bg 331 312 0.00      
14 Bu 1203 1131 329.19      
15 Bu 877 824 362.95      
16 Bu 623 585 11.81      
17 Bu 450 423 1.21      
18 Bu 173 162 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 5866.9 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 5514.3 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(2df,p)
ABC
0.07495 0.03968 0.03572

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.235 0.731 0.000
C2 0.235 -0.731 0.000
Cl3 -1.984 0.786 0.000
Cl4 1.984 -0.786 0.000
F5 0.235 1.334 1.081
F6 0.235 1.334 -1.081
F7 -0.235 -1.334 1.081
F8 -0.235 -1.334 -1.081

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 F5 F6 F7 F8
C11.53541.75032.68751.32401.32402.33082.3308
C21.53542.68751.75032.33082.33081.32401.3240
Cl31.75032.68754.26792.52842.52842.95322.9532
Cl42.68751.75034.26792.95322.95322.52842.5284
F51.32402.33082.52842.95322.16282.70853.4661
F61.32402.33082.52842.95322.16283.46612.7085
F72.33081.32402.95322.52842.70853.46612.1628
F82.33081.32402.95322.52843.46612.70852.1628

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 109.584 C1 C2 F7 108.975
C1 C2 F8 108.975 C2 C1 Cl3 109.584
C2 C1 F5 108.975 C2 C1 F6 108.975
Cl3 C1 F5 109.881 Cl3 C1 F6 109.881
Cl4 C2 F7 109.881 Cl4 C2 F8 109.881
F5 C1 F6 109.523 F7 C2 F8 109.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability