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All results from a given calculation for CHCl2CHF2 (1,1-dichloro-2,2-difluoroethane)

using model chemistry: QCISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-1189.391334
Energy at 298.15K-1189.394611
HF Energy-1188.848603
Nuclear repulsion energy366.627015
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 QCISD/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' 3192 3094 0.55      
2 A' 3162 3065 19.68      
3 A' 1461 1416 25.40      
4 A' 1278 1239 0.52      
5 A' 1120 1086 91.56      
6 A' 1058 1025 23.04      
7 A' 731 708 30.17      
8 A' 533 517 12.39      
9 A' 368 357 22.48      
10 A' 318 308 9.54      
11 A' 228 221 0.22      
12 A" 1443 1399 11.94      
13 A" 1211 1174 9.09      
14 A" 1180 1144 80.89      
15 A" 764 740 94.15      
16 A" 381 369 1.99      
17 A" 168 162 1.98      
18 A" 74 72 1.31      

Unscaled Zero Point Vibrational Energy (zpe) 9334.6 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 9047.1 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 QCISD/3-21G
ABC
0.07576 0.06764 0.03698

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.421 -0.188 0.000
C2 -0.372 1.118 0.000
H3 1.495 -0.007 0.000
H4 -1.446 0.938 0.000
Cl5 -0.007 -1.168 1.540
Cl6 -0.007 -1.168 -1.540
F7 -0.007 1.845 1.133
F8 -0.007 1.845 -1.133

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.52761.08902.18001.87501.87502.36602.3660
C21.52762.18001.08902.78042.78041.39471.3947
H31.08902.18003.08922.44422.44422.64022.6402
H42.18001.08903.08922.97942.97942.04392.0439
Cl51.87502.78042.44422.97943.07953.04044.0277
Cl61.87502.78042.44422.97943.07954.02773.0404
F72.36601.39472.64022.04393.04044.02772.2660
F82.36601.39472.64022.04394.02773.04042.2660

picture of 1,1-dichloro-2,2-difluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 111.752 C1 C2 F7 108.029
C1 C2 F8 108.029 C2 C1 H3 111.752
C2 C1 Cl5 109.176 C2 C1 Cl6 109.176
H3 C1 Cl5 108.159 H3 C1 Cl6 108.159
H4 C2 F7 110.146 H4 C2 F8 110.146
Cl5 C1 Cl6 110.413 F7 C2 F8 108.648
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability