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

using model chemistry: CCSD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/6-31G*
 hartrees
Energy at 0K-277.569659
Energy at 298.15K 
HF Energy-276.942654
Nuclear repulsion energy131.956626
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*
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' 3187 3010 16.10      
2 A' 3128 2954 46.85      
3 A' 3096 2923 3.64      
4 A' 1537 1451 5.02      
5 A' 1497 1414 74.83      
6 A' 1440 1360 5.44      
7 A' 1203 1136 45.99      
8 A' 1190 1124 69.23      
9 A' 904 854 8.98      
10 A' 573 541 7.17      
11 A' 470 444 13.77      
12 A" 3183 3006 11.58      
13 A" 1538 1453 0.07      
14 A" 1452 1371 43.60      
15 A" 1215 1148 129.43      
16 A" 1003 947 46.13      
17 A" 385 364 0.04      
18 A" 260 246 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 13632.0 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 12872.7 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 CCSD/6-31G*
ABC
0.31228 0.30008 0.17183

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.326 0.169 0.000
C2 -0.909 1.026 0.000
H3 1.266 0.732 0.000
F4 0.326 -0.644 1.104
F5 0.326 -0.644 -1.104
H6 -1.788 0.374 0.000
H7 -0.928 1.659 0.893
H8 -0.928 1.659 -0.893

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50371.09531.37171.37172.12422.14232.1423
C21.50372.19502.35322.35321.09441.09441.0944
H31.09532.19501.99921.99923.07492.54362.5436
F41.37172.35321.99922.20892.59382.63103.2966
F51.37172.35321.99922.20892.59383.29662.6310
H62.12421.09443.07492.59382.59381.78531.7853
H72.14231.09442.54362.63103.29661.78531.7860
H82.14231.09442.54363.29662.63101.78531.7860

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 108.667 C1 C2 H7 110.092
C1 C2 H8 110.092 C2 C1 H3 114.331
C2 C1 F4 109.762 C2 C1 F5 109.762
H3 C1 F4 107.737 H3 C1 F5 107.737
F4 C1 F5 107.252 H6 C2 H7 109.302
H6 C2 H8 109.302 H7 C2 H8 109.366
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability