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All results from a given calculation for CH3CHF2 (Ethane, 1,1-difluoro-)

using model chemistry: QCISD(T)=FULL/Def2TZVPP

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(T)=FULL/Def2TZVPP
 hartrees
Energy at 0K-278.040505
Energy at 298.15K 
HF Energy-277.069216
Nuclear repulsion energy132.562361
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(T)=FULL/Def2TZVPP
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' 3155 3155        
2 A' 3100 3100        
3 A' 3063 3063        
4 A' 1491 1491        
5 A' 1453 1453        
6 A' 1399 1399        
7 A' 1173 1173        
8 A' 1161 1161        
9 A' 879 879        
10 A' 572 572        
11 A' 469 469        
12 A" 3151 3151        
13 A" 1492 1492        
14 A" 1403 1403        
15 A" 1169 1169        
16 A" 965 965        
17 A" 380 380        
18 A" 225 225        

Unscaled Zero Point Vibrational Energy (zpe) 13349.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13349.7 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(T)=FULL/Def2TZVPP
ABC
0.31724 0.30044 0.17310

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.165 0.000
C2 -0.903 1.033 0.000
H3 1.260 0.718 0.000
F4 0.323 -0.646 1.096
F5 0.323 -0.646 -1.096
H6 -1.786 0.400 0.000
H7 -0.908 1.662 0.887
H8 -0.908 1.662 -0.887

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50211.08811.36351.36352.12272.13132.1313
C21.50212.18592.35042.35041.08761.08741.0874
H31.08812.18591.98491.98493.06352.52562.5256
F41.36352.35041.98492.19142.59712.62403.2825
F51.36352.35041.98492.19142.59713.28252.6240
H62.12271.08763.06352.59712.59711.77571.7757
H72.13131.08742.52562.62403.28251.77571.7750
H82.13131.08742.52563.28252.62401.77571.7750

picture of Ethane, 1,1-difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.048 C1 C2 H7 109.738
C1 C2 H8 109.738 C2 C1 H3 114.158
C2 C1 F4 110.119 C2 C1 F5 110.119
H3 C1 F4 107.599 H3 C1 F5 107.599
F4 C1 F5 106.957 H6 C2 H7 109.453
H6 C2 H8 109.453 H7 C2 H8 109.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability