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: MP3=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/cc-pVTZ
 hartrees
Energy at 0K-1196.273311
Energy at 298.15K-1196.276941
HF Energy-1194.912231
Nuclear repulsion energy381.362934
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 MP3=FULL/cc-pVTZ
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' 3211 2995 11.38      
2 A' 3197 2981 5.05      
3 A' 1468 1369 43.23      
4 A' 1300 1212 3.70      
5 A' 1195 1114 113.96      
6 A' 1118 1042 25.55      
7 A' 829 773 28.28      
8 A' 600 560 7.94      
9 A' 413 385 14.72      
10 A' 348 325 10.34      
11 A' 257 240 0.24      
12 A" 1425 1329 13.66      
13 A" 1277 1191 12.52      
14 A" 1210 1128 154.69      
15 A" 871 812 106.14      
16 A" 413 385 0.99      
17 A" 187 174 1.11      
18 A" 83 78 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 9700.8 cm-1
Scaled (by 0.9326) Zero Point Vibrational Energy (zpe) 9047.0 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 MP3=FULL/cc-pVTZ
ABC
0.08406 0.07143 0.03998

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.405 -0.225 0.000
C2 -0.354 1.089 0.000
H3 1.470 -0.052 0.000
H4 -1.418 0.916 0.000
Cl5 -0.007 -1.131 1.458
Cl6 -0.007 -1.131 -1.458
F7 -0.007 1.801 1.081
F8 -0.007 1.801 -1.081

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.51711.07882.15111.76541.76542.33272.3327
C21.51712.15111.07882.67832.67831.34011.3401
H31.07882.15113.04642.33932.33932.60442.6044
H42.15111.07883.04642.88232.88231.98601.9860
Cl51.76542.67832.33932.88232.91592.95573.8784
Cl61.76542.67832.33932.88232.91593.87842.9557
F72.33271.34012.60441.98602.95573.87842.1625
F82.33271.34012.60441.98603.87842.95572.1625

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 110.791 C1 C2 F7 109.303
C1 C2 F8 109.303 C2 C1 H3 110.791
C2 C1 Cl5 109.124 C2 C1 Cl6 109.124
H3 C1 Cl5 108.229 H3 C1 Cl6 108.229
H4 C2 F7 109.903 H4 C2 F8 109.903
Cl5 C1 Cl6 111.344 F7 C2 F8 107.576
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability