return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCSD=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD=FULL/cc-pVDZ
 hartrees
Energy at 0K-1195.759839
Energy at 298.15K-1195.763399
HF Energy-1194.785854
Nuclear repulsion energy377.505797
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 CCSD=FULL/cc-pVDZ
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' 3172 3172 17.13      
2 A' 3162 3162 7.76      
3 A' 1441 1441 52.04      
4 A' 1267 1267 2.04      
5 A' 1170 1170 105.41      
6 A' 1098 1098 39.66      
7 A' 811 811 31.37      
8 A' 584 584 8.01      
9 A' 404 404 15.56      
10 A' 347 347 10.78      
11 A' 255 255 0.24      
12 A" 1402 1402 22.42      
13 A" 1251 1251 15.20      
14 A" 1188 1188 151.31      
15 A" 854 854 112.20      
16 A" 404 404 1.07      
17 A" 184 184 1.44      
18 A" 81 81 0.77      

Unscaled Zero Point Vibrational Energy (zpe) 9537.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9537.7 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 CCSD=FULL/cc-pVDZ
ABC
0.08234 0.07008 0.03920

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.405 -0.226 0.000
C2 -0.359 1.102 0.000
H3 1.491 -0.051 0.000
H4 -1.445 0.927 0.000
Cl5 -0.006 -1.142 1.472
Cl6 -0.006 -1.142 -1.472
F7 -0.006 1.817 1.094
F8 -0.006 1.817 -1.094

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.53181.10002.17991.78241.78242.35352.3535
C21.53182.17991.10002.70672.70671.35371.3537
H31.10002.17993.09472.36672.36672.63222.6322
H42.17991.10003.09472.91852.91852.01462.0146
Cl51.78242.70672.36672.91852.94492.98313.9168
Cl61.78242.70672.36672.91852.94493.91682.9831
F72.35351.35372.63222.01462.98313.91682.1877
F82.35351.35372.63222.01463.91682.98312.1877

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 110.777 C1 C2 F7 109.149
C1 C2 F8 109.149 C2 C1 H3 110.777
C2 C1 Cl5 109.285 C2 C1 Cl6 109.285
H3 C1 Cl5 108.042 H3 C1 Cl6 108.042
H4 C2 F7 109.950 H4 C2 F8 109.950
Cl5 C1 Cl6 111.405 F7 C2 F8 107.807
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability