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All results from a given calculation for CHFClCHClF (ethane, 1,2-dichloro-1,2-difluoro-)

using model chemistry: QCISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CI 1AG
Energy calculated at QCISD/6-31G
 hartrees
Energy at 0K-1195.124442
Energy at 298.15K-1195.127680
HF Energy-1194.576910
Nuclear repulsion energy362.416986
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
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3175 3059 0.00      
2 Ag 1411 1360 0.00      
3 Ag 1322 1274 0.00      
4 Ag 1143 1101 0.00      
5 Ag 1040 1002 0.00      
6 Ag 773 745 0.00      
7 Ag 489 471 0.00      
8 Ag 346 333 0.00      
9 Ag 255 246 0.00      
10 Au 3186 3070 3.07      
11 Au 1313 1265 18.52      
12 Au 1258 1212 36.55      
13 Au 1067 1028 158.81      
14 Au 707 682 167.48      
15 Au 367 354 9.32      
16 Au 350 338 38.91      
17 Au 164 158 2.44      
18 Au 73 70 1.11      

Unscaled Zero Point Vibrational Energy (zpe) 9217.9 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 8882.4 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
ABC
0.12681 0.04537 0.03450

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.761
C2 0.000 0.000 0.761
H3 1.003 0.000 -1.194
H4 -1.003 0.000 1.194
F5 -0.722 -1.143 -1.206
F6 0.722 1.143 1.206
Cl7 -0.888 1.521 -1.396
Cl8 0.888 -1.521 1.396

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52301.09182.19751.42282.38711.87152.7845
C21.52302.19751.09182.38711.42282.78451.8715
H31.09182.19753.11812.06852.67302.43453.0051
H42.19751.09183.11812.67302.06853.00512.4345
F51.42282.38712.06852.67303.62292.67513.0827
F62.38711.42282.67302.06853.62293.08272.6751
Cl71.87152.78452.43453.00512.67513.08274.4936
Cl82.78451.87153.00512.43453.08272.67514.4936

picture of ethane, 1,2-dichloro-1,2-difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 113.336 C1 C2 F6 108.212
C1 C2 Cl8 109.803 C2 C1 H3 113.336
C2 C1 F5 108.212 C2 C1 Cl7 109.803
H3 C1 F5 109.998 H3 C1 Cl7 107.546
H4 C2 F6 109.998 H4 C2 Cl8 107.546
F5 C1 Cl7 107.812 F6 C2 Cl8 107.812
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability