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/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-1195.692500
Energy at 298.15K-1195.696112
HF Energy-1194.741815
Nuclear repulsion energy379.102243
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/6-31+G**
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' 3248 3025 9.56      
2 A' 3234 3013 4.59      
3 A' 1478 1376 40.60      
4 A' 1303 1214 0.69      
5 A' 1188 1106 102.94      
6 A' 1111 1035 43.60      
7 A' 829 772 30.15      
8 A' 578 539 7.65      
9 A' 412 384 19.81      
10 A' 357 333 10.77      
11 A' 260 242 0.19      
12 A" 1412 1316 13.80      
13 A" 1315 1225 21.65      
14 A" 1178 1098 157.92      
15 A" 875 815 108.99      
16 A" 411 383 0.71      
17 A" 188 175 1.38      
18 A" 87 81 0.93      

Unscaled Zero Point Vibrational Energy (zpe) 9731.8 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 9066.1 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 MP3=FULL/6-31+G**
ABC
0.08294 0.07085 0.03957

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.407 -0.231 0.000
C2 -0.359 1.085 0.000
H3 1.479 -0.062 0.000
H4 -1.430 0.916 0.000
Cl5 -0.007 -1.134 1.465
Cl6 -0.007 -1.134 -1.465
F7 -0.007 1.810 1.095
F8 -0.007 1.810 -1.095

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.52241.08472.16621.77041.77042.35282.3528
C21.52242.16621.08472.68242.68241.35971.3597
H31.08472.16623.06922.34572.34572.62882.6288
H42.16621.08473.06922.89452.89452.00622.0062
Cl51.77042.68242.34572.89452.93042.96783.9017
Cl61.77042.68242.34572.89452.93043.90172.9678
F72.35281.35972.62882.00622.96783.90172.1893
F82.35281.35972.62882.00623.90172.96782.1893

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 111.269 C1 C2 F7 109.311
C1 C2 F8 109.311 C2 C1 H3 111.269
C2 C1 Cl5 108.868 C2 C1 Cl6 108.868
H3 C1 Cl5 108.074 H3 C1 Cl6 108.074
H4 C2 F7 109.810 H4 C2 F8 109.810
Cl5 C1 Cl6 111.705 F7 C2 F8 107.238
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability