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

using model chemistry: B2PLYP/daug-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 B2PLYP/daug-cc-pVDZ
 hartrees
Energy at 0K-278.125119
Energy at 298.15K 
HF Energy-277.895776
Nuclear repulsion energy131.312337
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 B2PLYP/daug-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' 3172 3172 15.38 30.81 0.66 0.79
2 A' 3126 3126 26.40 111.04 0.25 0.41
3 A' 3074 3074 2.88 158.94 0.01 0.01
4 A' 1472 1472 5.69 4.42 0.75 0.85
5 A' 1430 1430 63.63 0.70 0.40 0.57
6 A' 1375 1375 1.47 0.71 0.44 0.61
7 A' 1155 1155 22.13 2.63 0.13 0.22
8 A' 1136 1136 102.09 3.67 0.46 0.63
9 A' 867 867 11.71 7.36 0.11 0.19
10 A' 556 556 5.94 1.16 0.21 0.35
11 A' 457 457 12.35 0.93 0.59 0.74
12 A" 3166 3166 9.14 49.33 0.75 0.86
13 A" 1472 1472 0.95 3.22 0.75 0.86
14 A" 1365 1365 14.40 4.00 0.75 0.86
15 A" 1123 1123 137.81 1.95 0.75 0.86
16 A" 929 929 92.04 3.08 0.75 0.86
17 A" 379 379 0.26 0.43 0.75 0.86
18 A" 230 230 0.05 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13240.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13240.6 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 B2PLYP/daug-cc-pVDZ
ABC
0.31056 0.29583 0.16995

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.171 0.000
C2 -0.902 1.045 0.000
H3 1.276 0.712 0.000
F4 0.322 -0.655 1.108
F5 0.322 -0.655 -1.108
H6 -1.800 0.416 0.000
H7 -0.900 1.680 0.893
H8 -0.900 1.680 -0.893

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50431.09681.38191.38192.13602.13722.1372
C21.50432.20402.36972.36971.09581.09621.0962
H31.09682.20402.00172.00173.09032.54352.5435
F41.38192.36972.00172.21572.62222.64403.3090
F51.38192.36972.00172.21572.62223.30902.6440
H62.13601.09583.09032.62222.62221.79071.7907
H72.13721.09622.54352.64403.30901.79071.7866
H82.13721.09622.54353.30902.64401.79071.7866

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 109.472 C1 C2 H7 109.541
C1 C2 H8 109.541 C2 C1 H3 114.941
C2 C1 F4 110.309 C2 C1 F5 110.309
H3 C1 F4 107.153 H3 C1 F5 107.153
F4 C1 F5 106.581 H6 C2 H7 109.558
H6 C2 H8 109.558 H7 C2 H8 109.156
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.992      
2 C 0.603      
3 H -0.655      
4 F -0.711      
5 F -0.711      
6 H -0.190      
7 H -0.163      
8 H -0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.372 2.358 0.000 2.387
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.840 0.534 0.005
y 0.534 -23.312 -0.009
z 0.005 -0.009 -25.930
Traceless
 xyz
x 2.781 0.534 0.005
y 0.534 0.573 -0.009
z 0.005 -0.009 -3.355
Polar
3z2-r2-6.709
x2-y21.472
xy0.534
xz0.005
yz-0.009


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.419 -0.205 -0.000
y -0.205 4.488 0.001
z -0.000 0.001 4.481


<r2> (average value of r2) Å2
<r2> 73.121
(<r2>)1/2 8.551