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

using model chemistry: CCD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-277.938310
Energy at 298.15K 
HF Energy-277.059460
Nuclear repulsion energy132.787216
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 CCD/aug-cc-pVTZ
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' 3174 3038 13.40      
2 A' 3122 2988 27.28      
3 A' 3082 2949 2.35      
4 A' 1512 1447 5.74      
5 A' 1472 1409 67.44      
6 A' 1419 1358 1.27      
7 A' 1195 1144 90.67      
8 A' 1177 1126 36.20      
9 A' 894 856 7.11      
10 A' 580 555 5.68      
11 A' 477 456 13.78      
12 A" 3172 3035 8.06      
13 A" 1514 1448 0.28      
14 A" 1419 1358 23.45      
15 A" 1195 1143 160.96      
16 A" 987 945 50.70      
17 A" 387 371 0.13      
18 A" 235 225 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 13505.7 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 12925.0 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 CCD/aug-cc-pVTZ
ABC
0.31940 0.30053 0.17377

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.164 0.000
C2 -0.902 1.033 0.000
H3 1.262 0.717 0.000
F4 0.323 -0.646 1.091
F5 0.323 -0.646 -1.091
H6 -1.789 0.403 0.000
H7 -0.905 1.663 0.888
H8 -0.905 1.663 -0.888

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50221.08971.35921.35922.12562.13152.1315
C21.50222.18662.34792.34791.08871.08841.0884
H31.08972.18661.98281.98283.06712.52522.5252
F41.35922.34791.98282.18282.59852.62333.2799
F51.35922.34791.98282.18282.59853.27992.6233
H62.12561.08873.06712.59852.59851.77741.7774
H72.13151.08842.52522.62333.27991.77741.7756
H82.13151.08842.52523.27992.62331.77741.7756

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 109.212 C1 C2 H7 109.699
C1 C2 H8 109.699 C2 C1 H3 114.109
C2 C1 F4 110.181 C2 C1 F5 110.181
H3 C1 F4 107.618 H3 C1 F5 107.618
F4 C1 F5 106.834 H6 C2 H7 109.455
H6 C2 H8 109.455 H7 C2 H8 109.306
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability