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

using model chemistry: QCISD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-1195.919031
Energy at 298.15K-1195.922590
HF Energy-1194.754599
Nuclear repulsion energy379.952552
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/6-31G(2df,p)
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' 3175 3008 6.75      
2 A' 3162 2996 12.14      
3 A' 1453 1376 41.10      
4 A' 1281 1213 2.90      
5 A' 1177 1115 102.24      
6 A' 1108 1049 20.31      
7 A' 819 776 28.74      
8 A' 587 556 7.41      
9 A' 404 383 13.35      
10 A' 346 328 10.04      
11 A' 253 240 0.21      
12 A" 1425 1350 14.27      
13 A" 1268 1202 17.94      
14 A" 1204 1141 133.17      
15 A" 866 820 110.55      
16 A" 407 386 0.97      
17 A" 183 173 1.01      
18 A" 80 76 0.75      

Unscaled Zero Point Vibrational Energy (zpe) 9597.9 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 9093.0 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 QCISD/6-31G(2df,p)
ABC
0.08331 0.07105 0.03972

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.404 -0.225 0.000
C2 -0.360 1.098 0.000
H3 1.481 -0.051 0.000
H4 -1.436 0.924 0.000
Cl5 -0.006 -1.134 1.464
Cl6 -0.006 -1.134 -1.464
F7 -0.006 1.803 1.086
F8 -0.006 1.803 -1.086

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.52821.09012.16981.77161.77162.33722.3372
C21.52822.16981.09012.69312.69311.34251.3425
H31.09012.16983.07532.35082.35082.61312.6131
H42.16981.09013.07532.90272.90271.99941.9994
Cl51.77162.69312.35082.90272.92832.96153.8901
Cl61.77162.69312.35082.90272.92833.89012.9615
F72.33721.34252.61311.99942.96153.89012.1727
F82.33721.34252.61311.99943.89012.96152.1727

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 110.821 C1 C2 F7 108.836
C1 C2 F8 108.836 C2 C1 H3 110.821
C2 C1 Cl5 109.178 C2 C1 Cl6 109.178
H3 C1 Cl5 108.094 H3 C1 Cl6 108.094
H4 C2 F7 110.122 H4 C2 F8 110.122
Cl5 C1 Cl6 111.477 F7 C2 F8 108.041
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability