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

using model chemistry: mPW1PW91/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/Def2TZVPP
 hartrees
Energy at 0K-278.366135
Energy at 298.15K 
HF Energy-278.366135
Nuclear repulsion energy132.700321
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 mPW1PW91/Def2TZVPP
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' 3167 3167 11.86 38.11 0.71 0.83
2 A' 3085 3085 37.93 116.41 0.23 0.37
3 A' 3077 3077 2.53 127.63 0.01 0.02
4 A' 1484 1484 5.93 6.15 0.75 0.86
5 A' 1439 1439 72.86 1.47 0.44 0.61
6 A' 1391 1391 0.87 0.63 0.68 0.81
7 A' 1170 1170 81.51 2.30 0.33 0.50
8 A' 1155 1155 57.31 2.82 0.46 0.63
9 A' 881 881 6.40 5.57 0.18 0.31
10 A' 573 573 4.93 0.85 0.45 0.62
11 A' 469 469 12.24 0.89 0.63 0.77
12 A" 3164 3164 7.72 48.72 0.75 0.86
13 A" 1485 1485 0.62 4.61 0.75 0.86
14 A" 1391 1391 19.23 5.31 0.75 0.86
15 A" 1158 1158 160.49 1.91 0.75 0.86
16 A" 958 958 60.09 3.07 0.75 0.86
17 A" 383 383 0.24 0.34 0.75 0.86
18 A" 232 232 0.06 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13331.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13331.3 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 mPW1PW91/Def2TZVPP
ABC
0.31830 0.30084 0.17343

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.320 0.162 0.000
C2 -0.895 1.037 0.000
H3 1.264 0.712 0.000
F4 0.320 -0.648 1.094
F5 0.320 -0.648 -1.094
H6 -1.789 0.415 0.000
H7 -0.897 1.669 0.886
H8 -0.897 1.669 -0.886

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49761.09231.36131.36132.12482.12972.1297
C21.49762.18402.34792.34791.08871.08841.0884
H31.09232.18401.98411.98413.06802.52412.5241
F41.36132.34791.98412.18812.60342.62483.2815
F51.36132.34791.98412.18812.60343.28152.6248
H62.12481.08873.06802.60342.60341.77551.7755
H72.12971.08842.52412.62483.28151.77551.7724
H82.12971.08842.52413.28152.62481.77551.7724

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 109.469 C1 C2 H7 109.877
C1 C2 H8 109.877 C2 C1 H3 114.064
C2 C1 F4 110.332 C2 C1 F5 110.332
H3 C1 F4 107.421 H3 C1 F5 107.421
F4 C1 F5 106.971 H6 C2 H7 109.285
H6 C2 H8 109.285 H7 C2 H8 109.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.308      
2 C -0.217      
3 H 0.050      
4 F -0.205      
5 F -0.205      
6 H 0.094      
7 H 0.087      
8 H 0.087      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.359 2.177 0.000 2.206
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.414 0.474 0.000
y 0.474 -22.757 0.000
z 0.000 0.000 -25.150
Traceless
 xyz
x 2.540 0.474 0.000
y 0.474 0.525 0.000
z 0.000 0.000 -3.065
Polar
3z2-r2-6.130
x2-y21.344
xy0.474
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.007 -0.147 0.000
y -0.147 4.037 0.000
z 0.000 0.000 4.027


<r2> (average value of r2) Å2
<r2> 71.637
(<r2>)1/2 8.464