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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-1189.788874
Energy at 298.15K-1189.792296
HF Energy-1189.065129
Nuclear repulsion energy373.776802
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' 3162 3039 2.94      
2 A' 3141 3019 18.70      
3 A' 1464 1407 25.23      
4 A' 1301 1250 0.75      
5 A' 1123 1080 91.30      
6 A' 1053 1012 22.19      
7 A' 779 749 26.37      
8 A' 541 520 10.18      
9 A' 380 365 21.64      
10 A' 346 332 10.64      
11 A' 252 242 0.04      
12 A" 1449 1393 14.97      
13 A" 1290 1239 13.44      
14 A" 1187 1141 75.16      
15 A" 805 774 95.68      
16 A" 394 379 2.03      
17 A" 175 168 1.90      
18 A" 78 75 1.18      

Unscaled Zero Point Vibrational Energy (zpe) 9459.6 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 9091.6 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
0.08022 0.06950 0.03856

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 0.407 -0.224 0.000
C2 -0.372 1.101 0.000
H3 1.482 -0.035 0.000
H4 -1.447 0.913 0.000
Cl5 -0.005 -1.147 1.482
Cl6 -0.005 -1.147 -1.482
F7 -0.005 1.825 1.133
F8 -0.005 1.825 -1.133

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.53761.09082.17441.79411.79412.37722.3772
C21.53762.17441.09082.71802.71801.39341.3934
H31.09082.17443.07762.37542.37542.63662.6366
H42.17441.09083.07762.91852.91852.04812.0481
Cl51.79412.71802.37542.91852.96452.99263.9586
Cl61.79412.71802.37542.91852.96453.95862.9926
F72.37721.39342.63662.04812.99263.95862.2652
F82.37721.39342.63662.04813.95862.99262.2652

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 110.487 C1 C2 F7 108.297
C1 C2 F8 108.297 C2 C1 H3 110.487
C2 C1 Cl5 109.093 C2 C1 Cl6 109.093
H3 C1 Cl5 108.374 H3 C1 Cl6 108.374
H4 C2 F7 110.472 H4 C2 F8 110.472
Cl5 C1 Cl6 111.417 F7 C2 F8 108.746
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability