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All results from a given calculation for CFClCFCl (cis-1,2-dichloro-1,2-difluoroethylene)

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 C2V 1A1
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-1188.559421
Energy at 298.15K-1188.559956
HF Energy-1187.844593
Nuclear repulsion energy348.050441
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 A1 1738 1648 3.21      
2 A1 1166 1106 203.59      
3 A1 551 523 2.26      
4 A1 314 298 2.34      
5 A1 178 168 2.02      
6 A2 575 546 0.00      
7 A2 150 142 0.00      
8 B1 362 343 1.90      
9 B2 1219 1155 6.89      
10 B2 929 881 135.26      
11 B2 439 417 0.01      
12 B2 402 381 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 4011.8 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 3803.2 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
0.09837 0.06267 0.03828

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.669 0.420
C2 0.000 -0.669 0.420
F3 0.000 1.367 1.603
F4 0.000 -1.367 1.603
Cl5 0.000 1.636 -0.997
Cl6 0.000 -1.636 -0.997

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33731.37402.35471.71572.7056
C21.33732.35471.37402.70561.7157
F31.37402.35472.73442.61383.9725
F42.35471.37402.73443.97252.6138
Cl51.71572.70562.61383.97253.2726
Cl62.70561.71573.97252.61383.2726

picture of cis-1,2-dichloro-1,2-difluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 120.557 C1 C2 Cl6 124.333
C2 C1 F3 120.557 C2 C1 Cl5 124.333
F3 C1 Cl5 115.110 F4 C2 Cl6 115.110
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability