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

using model chemistry: QCISD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at QCISD/6-311G**
 hartrees
Energy at 0K-1195.851732
Energy at 298.15K-1195.855340
HF Energy-1194.843220
Nuclear repulsion energy377.578859
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/6-311G**
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 3167 3022 0.60      
2 A 1449 1383 12.86      
3 A 1354 1292 20.15      
4 A 1170 1117 142.75      
5 A 1107 1056 121.05      
6 A 870 831 79.84      
7 A 474 452 0.55      
8 A 322 307 1.50      
9 A 173 165 0.76      
10 A 84 80 0.58      
11 B 3177 3031 16.66      
12 B 1395 1331 11.16      
13 B 1277 1219 37.81      
14 B 1127 1076 24.13      
15 B 864 824 106.02      
16 B 444 424 12.61      
17 B 403 385 8.36      
18 B 342 327 11.26      

Unscaled Zero Point Vibrational Energy (zpe) 9600.7 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 9160.0 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/6-311G**
ABC
0.09837 0.06041 0.03890

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.224 0.731 0.396
C2 0.224 -0.731 0.396
H3 -1.311 0.805 0.357
H4 1.311 -0.805 0.357
F5 0.224 1.294 1.551
F6 -0.224 -1.294 1.551
Cl7 0.458 1.605 -0.982
Cl8 -0.458 -1.605 -0.982

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52811.09002.17101.36062.33051.76882.7215
C21.52812.17101.09002.33051.36062.72151.7688
H31.09002.17103.07602.00462.64762.35862.8853
H42.17101.09003.07602.64762.00462.88532.3586
F51.36062.33052.00462.64762.62602.56263.9092
F62.33051.36062.64762.00462.62603.90922.5626
Cl71.76882.72152.35862.88532.56263.90923.3376
Cl82.72151.76882.88532.35863.90922.56263.3376

picture of 1,2-dichloro-1,2-difluoroethane RR state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 110.935 C1 C2 F6 107.420
C1 C2 Cl8 111.064 C2 C1 H3 110.935
C2 C1 F5 107.420 C2 C1 Cl7 111.064
H3 C1 F5 109.277 H3 C1 Cl7 108.857
H4 C2 F6 109.277 H4 C2 Cl8 108.857
F5 C1 Cl7 109.251 F6 C2 Cl8 109.251
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability