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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CI 1AG
Energy calculated at CCSD/6-31G(2df,p)
 hartrees
Energy at 0K-1195.909876
Energy at 298.15K-1195.913416
HF Energy-1194.748110
Nuclear repulsion energy377.286429
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 CCSD/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 Ag 3168 2995 0.00      
2 Ag 1447 1368 0.00      
3 Ag 1350 1277 0.00      
4 Ag 1184 1119 0.00      
5 Ag 1126 1065 0.00      
6 Ag 859 812 0.00      
7 Ag 531 502 0.00      
8 Ag 384 363 0.00      
9 Ag 275 260 0.00      
10 Au 3180 3006 9.28      
11 Au 1368 1293 25.51      
12 Au 1260 1191 38.20      
13 Au 1194 1129 218.90      
14 Au 809 765 192.30      
15 Au 409 387 3.15      
16 Au 370 350 25.88      
17 Au 174 164 1.08      
18 Au 78 74 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 9582.5 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 9060.2 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 CCSD/6-31G(2df,p)
ABC
0.13592 0.04943 0.03745

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

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.762
C2 0.000 0.000 0.762
H3 1.017 0.000 -1.154
H4 -1.017 0.000 1.154
F5 -0.669 -1.082 -1.199
F6 0.669 1.082 1.199
Cl7 -0.813 1.467 -1.342
Cl8 0.813 -1.467 1.342

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52421.08962.16891.34532.33791.77482.6910
C21.52422.16891.08962.33791.34532.69101.7748
H31.08962.16893.07572.00392.61302.35322.9021
H42.16891.08963.07572.61302.00392.90212.3532
F51.34532.33792.00392.61303.49682.55722.9672
F62.33791.34532.61302.00393.49682.96722.5572
Cl71.77482.69102.35322.90212.55722.96724.2965
Cl82.69101.77482.90212.35322.96722.55724.2965

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 111.059 C1 C2 F6 108.959
C1 C2 Cl8 109.073 C2 C1 H3 111.059
C2 C1 F5 108.959 C2 C1 Cl7 109.073
H3 C1 F5 110.332 H3 C1 Cl7 108.075
H4 C2 F6 110.332 H4 C2 Cl8 108.075
F5 C1 Cl7 109.313 F6 C2 Cl8 109.313
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability