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

using model chemistry: PBEPBE/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 PBEPBE/TZVP
 hartrees
Energy at 0K-278.124947
Energy at 298.15K 
HF Energy-278.124947
Nuclear repulsion energy130.998728
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 PBEPBE/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' 3081 3046 10.55 44.47 0.73 0.84
2 A' 2993 2960 1.81 153.88 0.01 0.01
3 A' 2984 2951 43.47 105.67 0.30 0.46
4 A' 1435 1419 5.15 8.20 0.75 0.86
5 A' 1381 1365 69.62 2.72 0.68 0.81
6 A' 1338 1323 4.85 1.35 0.73 0.84
7 A' 1122 1110 25.08 1.46 0.02 0.04
8 A' 1094 1082 116.16 3.60 0.73 0.84
9 A' 845 835 8.92 6.04 0.24 0.38
10 A' 549 543 5.35 1.22 0.45 0.62
11 A' 450 445 11.21 1.31 0.67 0.80
12 A" 3077 3042 7.49 54.68 0.75 0.86
13 A" 1435 1419 1.21 6.78 0.75 0.86
14 A" 1339 1324 20.24 8.76 0.75 0.86
15 A" 1091 1079 133.43 2.11 0.75 0.86
16 A" 896 886 94.39 4.36 0.75 0.86
17 A" 373 369 0.27 0.49 0.75 0.86
18 A" 233 230 0.05 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12857.6 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 12713.6 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 PBEPBE/TZVP
ABC
0.30805 0.29527 0.16894

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.167 0.000
C2 -0.900 1.048 0.000
H3 1.279 0.714 0.000
F4 0.322 -0.656 1.113
F5 0.322 -0.656 -1.113
H6 -1.805 0.426 0.000
H7 -0.900 1.687 0.893
H8 -0.900 1.687 -0.893

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50611.10321.38421.38422.14202.14482.1448
C21.50612.20442.37362.37361.09831.09821.0982
H31.10322.20442.00852.00853.09742.54812.5481
F41.38422.37362.00852.22672.63252.65093.3175
F51.38422.37362.00852.22672.63253.31752.6509
H62.14201.09833.09742.63252.63251.79071.7907
H72.14481.09822.54812.65093.31751.79071.7869
H82.14481.09822.54813.31752.65091.79071.7869

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 109.672 C1 C2 H7 109.905
C1 C2 H8 109.905 C2 C1 H3 114.426
C2 C1 F4 110.346 C2 C1 F5 110.346
H3 C1 F4 107.154 H3 C1 F5 107.154
F4 C1 F5 107.089 H6 C2 H7 109.223
H6 C2 H8 109.223 H7 C2 H8 108.893
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.172      
2 C -0.339      
3 H 0.101      
4 F -0.174      
5 F -0.174      
6 H 0.143      
7 H 0.135      
8 H 0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.387 2.267 0.000 2.299
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.779 0.458 0.000
y 0.458 -23.152 0.000
z 0.000 0.000 -25.684
Traceless
 xyz
x 2.639 0.458 0.000
y 0.458 0.579 0.000
z 0.000 0.000 -3.219
Polar
3z2-r2-6.437
x2-y21.374
xy0.458
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.061 -0.126 0.000
y -0.126 4.108 0.000
z 0.000 0.000 4.112


<r2> (average value of r2) Å2
<r2> 73.339
(<r2>)1/2 8.564