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

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-278.218996
Energy at 298.15K 
HF Energy-278.218996
Nuclear repulsion energy132.024942
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 B3PW91/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' 3167 3056 10.13      
2 A' 3069 2961 24.79      
3 A' 3065 2958 31.89      
4 A' 1454 1403 11.42      
5 A' 1422 1372 79.20      
6 A' 1364 1316 1.75      
7 A' 1158 1117 103.75      
8 A' 1147 1107 31.91      
9 A' 876 846 7.80      
10 A' 565 545 5.21      
11 A' 463 447 12.47      
12 A" 3166 3055 7.95      
13 A" 1457 1406 0.01      
14 A" 1376 1328 31.59      
15 A" 1156 1116 156.29      
16 A" 951 917 48.66      
17 A" 376 363 0.13      
18 A" 236 228 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 13234.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 12770.9 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 B3PW91/cc-pVDZ
ABC
0.31435 0.29890 0.17193

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.163 0.000
C2 -0.900 1.037 0.000
H3 1.273 0.724 0.000
F4 0.323 -0.649 1.101
F5 0.323 -0.649 -1.101
H6 -1.799 0.404 0.000
H7 -0.909 1.675 0.895
H8 -0.909 1.675 -0.895

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50241.10391.36761.36762.13542.14512.1451
C21.50242.19562.35502.35501.09971.09911.0991
H31.10392.19561.99991.99993.08932.54282.5428
F41.36762.35501.99992.20112.61182.63763.3009
F51.36762.35501.99992.20112.61183.30092.6376
H62.13541.09973.08932.61182.61181.79131.7913
H72.14511.09912.54282.63763.30091.79131.7897
H82.14511.09912.54283.30092.63761.79131.7897

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 109.326 C1 C2 H7 110.125
C1 C2 H8 110.125 C2 C1 H3 113.915
C2 C1 F4 110.193 C2 C1 F5 110.193
H3 C1 F4 107.553 H3 C1 F5 107.553
F4 C1 F5 107.169 H6 C2 H7 109.114
H6 C2 H8 109.114 H7 C2 H8 109.015
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.328      
2 C -0.113      
3 H 0.028      
4 F -0.217      
5 F -0.217      
6 H 0.069      
7 H 0.060      
8 H 0.060      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.328 2.039 0.000 2.066
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.279 0.526 0.000
y 0.526 -22.425 0.000
z 0.000 0.000 -24.649
Traceless
 xyz
x 2.257 0.526 0.000
y 0.526 0.539 0.000
z 0.000 0.000 -2.797
Polar
3z2-r2-5.594
x2-y21.145
xy0.526
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.566 -0.102 0.000
y -0.102 3.485 0.000
z 0.000 0.000 3.480


<r2> (average value of r2) Å2
<r2> 71.980
(<r2>)1/2 8.484