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

using model chemistry: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-278.231221
Energy at 298.15K 
HF Energy-278.231221
Nuclear repulsion energy132.570961
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 B1B95/cc-pVDZ
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' 3191 3067 9.61 50.05 0.73 0.84
2 A' 3092 2972 32.45 194.74 0.10 0.18
3 A' 3088 2968 22.99 40.93 0.26 0.42
4 A' 1458 1402 17.99 12.37 0.74 0.85
5 A' 1431 1375 78.45 2.52 0.50 0.67
6 A' 1367 1314 1.35 0.66 0.74 0.85
7 A' 1172 1126 109.75 4.12 0.72 0.83
8 A' 1154 1109 24.64 2.11 0.20 0.33
9 A' 884 850 7.76 5.42 0.25 0.39
10 A' 567 545 5.22 0.86 0.60 0.75
11 A' 464 446 13.27 0.99 0.63 0.77
12 A" 3191 3067 7.53 59.08 0.75 0.86
13 A" 1461 1404 0.05 8.07 0.75 0.86
14 A" 1383 1329 34.27 10.19 0.75 0.86
15 A" 1171 1126 163.40 2.46 0.75 0.86
16 A" 959 921 41.58 3.43 0.75 0.86
17 A" 374 360 0.09 0.38 0.75 0.86
18 A" 236 227 0.08 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13320.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 12803.5 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 B1B95/cc-pVDZ
ABC
0.31712 0.30136 0.17350

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.164 0.000
C2 -0.898 1.030 0.000
H3 1.269 0.725 0.000
F4 0.322 -0.645 1.095
F5 0.322 -0.645 -1.095
H6 -1.791 0.394 0.000
H7 -0.909 1.666 0.893
H8 -0.909 1.666 -0.893

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49681.10071.36191.36192.12582.13762.1376
C21.49682.18922.34472.34471.09661.09591.0959
H31.10072.18921.99341.99343.07842.53582.5358
F41.36192.34471.99342.19062.59722.62673.2880
F51.36192.34471.99342.19062.59723.28802.6267
H62.12581.09663.07842.59722.59721.78691.7869
H72.13761.09592.53582.62673.28801.78691.7854
H82.13761.09592.53583.28802.62671.78691.7854

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 109.137 C1 C2 H7 110.116
C1 C2 H8 110.116 C2 C1 H3 114.013
C2 C1 F4 110.120 C2 C1 F5 110.120
H3 C1 F4 107.617 H3 C1 F5 107.617
F4 C1 F5 107.080 H6 C2 H7 109.177
H6 C2 H8 109.177 H7 C2 H8 109.097
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.336      
2 C -0.079      
3 H 0.019      
4 F -0.218      
5 F -0.218      
6 H 0.060      
7 H 0.051      
8 H 0.051      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.330 2.052 0.000 2.078
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.267 0.529 0.000
y 0.529 -22.415 0.000
z 0.000 0.000 -24.642
Traceless
 xyz
x 2.261 0.529 0.000
y 0.529 0.539 0.000
z 0.000 0.000 -2.800
Polar
3z2-r2-5.601
x2-y21.148
xy0.529
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.544 -0.094 0.000
y -0.094 3.455 0.000
z 0.000 0.000 3.446


<r2> (average value of r2) Å2
<r2> 71.478
(<r2>)1/2 8.454