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

using model chemistry: HSEh1PBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-31G
 hartrees
Energy at 0K-277.979450
Energy at 298.15K 
HF Energy-277.979450
Nuclear repulsion energy130.163073
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 HSEh1PBE/6-31G
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' 3202 3063 14.70 35.24 0.66 0.79
2 A' 3154 3017 35.33 110.89 0.33 0.49
3 A' 3099 2964 1.85 105.83 0.01 0.02
4 A' 1530 1463 7.30 17.51 0.75 0.86
5 A' 1479 1415 48.96 4.13 0.74 0.85
6 A' 1421 1359 26.71 2.95 0.75 0.86
7 A' 1200 1148 34.10 2.33 0.36 0.53
8 A' 1146 1096 84.21 4.77 0.62 0.76
9 A' 890 851 11.88 7.43 0.19 0.32
10 A' 545 522 9.80 1.15 0.51 0.67
11 A' 440 421 16.55 1.64 0.71 0.83
12 A" 3196 3058 7.59 56.63 0.75 0.86
13 A" 1532 1466 4.22 14.88 0.75 0.86
14 A" 1407 1346 32.26 9.43 0.75 0.86
15 A" 1183 1131 101.36 4.49 0.75 0.86
16 A" 967 925 61.71 6.30 0.75 0.86
17 A" 373 357 0.06 0.50 0.75 0.86
18 A" 255 244 0.10 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13508.4 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 12922.1 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 HSEh1PBE/6-31G
ABC
0.29833 0.29724 0.16693

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.325 0.184 0.000
C2 -0.905 1.032 0.000
H3 1.269 0.732 0.000
F4 0.325 -0.652 1.133
F5 0.325 -0.652 -1.133
H6 -1.789 0.389 0.000
H7 -0.929 1.666 0.889
H8 -0.929 1.666 -0.889

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49441.09111.40831.40832.12402.13522.1352
C21.49442.19472.37372.37371.09231.09211.0921
H31.09112.19472.02242.02243.07672.54812.5481
F41.40832.37372.02242.26642.61522.64693.3220
F51.40832.37372.02242.26642.61523.32202.6469
H62.12401.09233.07672.61522.61521.77711.7771
H72.13521.09212.54812.64693.32201.77711.7779
H82.13521.09212.54813.32202.64691.77711.7779

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 109.417 C1 C2 H7 110.321
C1 C2 H8 110.321 C2 C1 H3 115.288
C2 C1 F4 109.689 C2 C1 F5 109.689
H3 C1 F4 107.346 H3 C1 F5 107.346
F4 C1 F5 107.153 H6 C2 H7 108.886
H6 C2 H8 108.886 H7 C2 H8 108.978
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.421      
2 C -0.537      
3 H 0.176      
4 F -0.327      
5 F -0.327      
6 H 0.210      
7 H 0.192      
8 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.403 2.608 0.000 2.639
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.012 0.595 0.000
y 0.595 -22.662 0.000
z 0.000 0.000 -25.708
Traceless
 xyz
x 3.173 0.595 0.000
y 0.595 0.698 0.000
z 0.000 0.000 -3.871
Polar
3z2-r2-7.741
x2-y21.650
xy0.595
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.143 -0.060 0.000
y -0.060 3.224 0.000
z 0.000 0.000 3.382


<r2> (average value of r2) Å2
<r2> 73.619
(<r2>)1/2 8.580