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

using model chemistry: B3PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/TZVP
 hartrees
Energy at 0K-278.320071
Energy at 298.15K 
HF Energy-278.320071
Nuclear repulsion energy132.180042
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 B3PW91/TZVP
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' 3153 3041 12.28 41.11 0.72 0.84
2 A' 3075 2965 40.06 115.66 0.25 0.40
3 A' 3064 2955 2.36 129.77 0.01 0.02
4 A' 1481 1428 5.84 8.06 0.75 0.86
5 A' 1435 1383 74.65 2.06 0.60 0.75
6 A' 1387 1338 2.98 1.01 0.75 0.86
7 A' 1162 1121 46.43 1.65 0.07 0.13
8 A' 1143 1102 101.84 3.57 0.73 0.85
9 A' 874 843 8.16 5.78 0.23 0.37
10 A' 570 550 5.63 1.07 0.47 0.64
11 A' 468 451 13.09 1.14 0.64 0.78
12 A" 3150 3038 8.12 51.64 0.75 0.86
13 A" 1482 1429 0.80 6.04 0.75 0.86
14 A" 1395 1345 24.50 8.28 0.75 0.86
15 A" 1145 1104 155.32 2.07 0.75 0.86
16 A" 945 912 78.96 4.34 0.75 0.86
17 A" 384 371 0.18 0.40 0.75 0.86
18 A" 236 228 0.05 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13274.1 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 12800.2 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 B3PW91/TZVP
ABC
0.31519 0.29897 0.17194

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.320 0.163 0.000
C2 -0.895 1.042 0.000
H3 1.268 0.710 0.000
F4 0.320 -0.651 1.100
F5 0.320 -0.651 -1.100
H6 -1.795 0.425 0.000
H7 -0.895 1.676 0.888
H8 -0.895 1.676 -0.888

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50051.09421.36801.36802.13112.13402.1340
C21.50052.18842.35662.35661.09081.09061.0906
H31.09422.18841.98991.98993.07562.52922.5292
F41.36802.35661.98992.20012.61522.63323.2924
F51.36802.35661.98992.20012.61523.29242.6332
H62.13111.09083.07562.61522.61521.77841.7784
H72.13401.09062.52922.63323.29241.77841.7755
H82.13401.09062.52923.29242.63321.77841.7755

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 109.635 C1 C2 H7 109.881
C1 C2 H8 109.881 C2 C1 H3 114.088
C2 C1 F4 110.392 C2 C1 F5 110.392
H3 C1 F4 107.307 H3 C1 F5 107.307
F4 C1 F5 107.050 H6 C2 H7 109.226
H6 C2 H8 109.226 H7 C2 H8 108.972
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.247      
2 C -0.347      
3 H 0.094      
4 F -0.202      
5 F -0.202      
6 H 0.143      
7 H 0.134      
8 H 0.134      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.372 2.332 0.000 2.362
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.440 0.502 0.000
y 0.502 -22.910 0.000
z 0.000 0.000 -25.504
Traceless
 xyz
x 2.767 0.502 0.000
y 0.502 0.562 0.000
z 0.000 0.000 -3.329
Polar
3z2-r2-6.659
x2-y21.470
xy0.502
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.827 -0.094 0.000
y -0.094 3.881 0.000
z 0.000 0.000 3.890


<r2> (average value of r2) Å2
<r2> 72.200
(<r2>)1/2 8.497