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

using model chemistry: CCSD=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 CCSD=FULL/Def2TZVPP
 hartrees
Energy at 0K-278.011383
Energy at 298.15K 
HF Energy-277.069692
Nuclear repulsion energy132.969518
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=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' 3173 3173 15.64      
2 A' 3123 3123 31.57      
3 A' 3084 3084 2.75      
4 A' 1508 1508 8.96      
5 A' 1476 1476 67.58      
6 A' 1419 1419 0.55      
7 A' 1196 1196 97.72      
8 A' 1177 1177 30.25      
9 A' 893 893 7.06      
10 A' 583 583 5.63      
11 A' 478 478 13.35      
12 A" 3170 3170 9.05      
13 A" 1508 1508 0.06      
14 A" 1425 1425 23.74      
15 A" 1195 1195 160.35      
16 A" 985 985 47.64      
17 A" 388 388 0.09      
18 A" 237 237 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 13508.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13508.0 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 CCSD=FULL/Def2TZVPP
ABC
0.31993 0.30155 0.17411

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.162 0.000
C2 -0.899 1.033 0.000
H3 1.257 0.715 0.000
F4 0.322 -0.645 1.091
F5 0.322 -0.645 -1.091
H6 -1.786 0.406 0.000
H7 -0.901 1.661 0.886
H8 -0.901 1.661 -0.886

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50001.08641.35741.35742.12142.12792.1279
C21.50002.17992.34512.34511.08611.08581.0858
H31.08642.17991.97871.97873.05852.51792.5179
F41.35742.34511.97872.18192.59542.61913.2748
F51.35742.34511.97872.18192.59543.27482.6191
H62.12141.08613.05852.59542.59541.77301.7730
H72.12791.08582.51792.61913.27481.77301.7714
H82.12791.08582.51793.27482.61911.77301.7714

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 109.191 C1 C2 H7 109.718
C1 C2 H8 109.718 C2 C1 H3 113.932
C2 C1 F4 110.215 C2 C1 F5 110.215
H3 C1 F4 107.613 H3 C1 F5 107.613
F4 C1 F5 106.973 H6 C2 H7 109.443
H6 C2 H8 109.443 H7 C2 H8 109.314
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability