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

using model chemistry: TPSSh/daug-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 TPSSh/daug-cc-pVTZ
 hartrees
Energy at 0K-278.423561
Energy at 298.15K 
HF Energy-278.423561
Nuclear repulsion energy131.779514
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 TPSSh/daug-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' 3132 3132 15.78 34.84 0.70 0.83
2 A' 3066 3066 32.10 128.26 0.21 0.35
3 A' 3047 3047 3.72 147.29 0.01 0.01
4 A' 1494 1494 4.26 4.31 0.75 0.86
5 A' 1429 1429 52.64 0.60 0.60 0.75
6 A' 1388 1388 7.36 1.07 0.41 0.58
7 A' 1155 1155 23.83 2.67 0.03 0.05
8 A' 1127 1127 111.95 3.39 0.74 0.85
9 A' 864 864 8.56 7.15 0.12 0.21
10 A' 554 554 5.03 0.92 0.27 0.43
11 A' 453 453 11.89 0.92 0.58 0.73
12 A" 3125 3125 10.95 50.96 0.75 0.86
13 A" 1494 1494 1.05 3.48 0.75 0.86
14 A" 1370 1370 14.84 3.59 0.75 0.86
15 A" 1127 1127 131.09 1.81 0.75 0.86
16 A" 932 932 96.52 2.68 0.75 0.86
17 A" 370 370 0.23 0.41 0.75 0.86
18 A" 224 224 0.05 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13175.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13175.2 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 TPSSh/daug-cc-pVTZ
ABC
0.31328 0.29717 0.17104

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.169 0.000
C2 -0.902 1.042 0.000
H3 1.271 0.711 0.000
F4 0.323 -0.652 1.103
F5 0.323 -0.652 -1.103
H6 -1.795 0.415 0.000
H7 -0.904 1.674 0.888
H8 -0.904 1.674 -0.888

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50401.09221.37531.37532.13172.13482.1348
C21.50402.19842.36362.36361.09011.09051.0905
H31.09222.19841.99371.99373.08002.53882.5388
F41.37532.36361.99372.20612.61532.63843.2986
F51.37532.36361.99372.20612.61533.29862.6384
H62.13171.09013.08002.61532.61531.77971.7797
H72.13481.09052.53882.63843.29861.77971.7767
H82.13481.09052.53883.29862.63841.77971.7767

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 109.487 C1 C2 H7 109.711
C1 C2 H8 109.711 C2 C1 H3 114.805
C2 C1 F4 110.269 C2 C1 F5 110.269
H3 C1 F4 107.239 H3 C1 F5 107.239
F4 C1 F5 106.646 H6 C2 H7 109.404
H6 C2 H8 109.404 H7 C2 H8 109.109
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.674      
2 C -0.632      
3 H 0.460      
4 F -0.840      
5 F -0.840      
6 H 0.046      
7 H 0.066      
8 H 0.066      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.368 2.255 0.000 2.285
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.466 -0.221 0.000
y -0.221 4.514 0.000
z 0.000 0.000 4.482


<r2> (average value of r2) Å2
<r2> 72.537
(<r2>)1/2 8.517