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

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-277.017232
Energy at 298.15K 
HF Energy-277.017232
Nuclear repulsion energy133.866784
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 HF/6-311G*
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' 3308 2992 85.67 47.99 0.08 0.14
2 A' 3278 2964 4.48 100.50 0.65 0.79
3 A' 3206 2900 7.69 111.85 0.02 0.04
4 A' 1619 1465 14.83 10.95 0.73 0.85
5 A' 1594 1442 78.64 2.22 0.22 0.36
6 A' 1527 1381 4.79 0.68 0.63 0.78
7 A' 1277 1155 96.31 1.71 0.42 0.60
8 A' 1248 1128 74.18 4.86 0.56 0.72
9 A' 941 851 12.56 6.15 0.23 0.37
10 A' 619 560 8.63 0.80 0.57 0.73
11 A' 507 459 17.72 0.87 0.57 0.73
12 A" 3280 2966 27.89 58.00 0.75 0.86
13 A" 1621 1466 0.08 6.76 0.75 0.86
14 A" 1550 1402 40.77 8.93 0.75 0.86
15 A" 1282 1160 176.86 2.64 0.75 0.86
16 A" 1060 959 72.18 4.29 0.75 0.86
17 A" 410 371 0.01 0.23 0.75 0.86
18 A" 257 232 0.09 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14291.7 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 12925.4 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 HF/6-311G*
ABC
0.32616 0.30359 0.17634

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.157 0.000
C2 -0.899 1.028 0.000
H3 1.253 0.705 0.000
F4 0.322 -0.641 1.080
F5 0.322 -0.641 -1.080
H6 -1.786 0.407 0.000
H7 -0.907 1.657 0.882
H8 -0.907 1.657 -0.882

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50031.07961.34281.34282.12292.13042.1304
C21.50032.17592.33342.33341.08291.08291.0829
H31.07962.17591.96021.96023.05312.51992.5199
F41.34282.33341.96022.15972.59012.61363.2619
F51.34282.33341.96022.15972.59013.26192.6136
H62.12291.08293.05312.59012.59011.76391.7639
H72.13041.08292.51992.61363.26191.76391.7639
H82.13041.08292.51993.26192.61361.76391.7639

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 109.470 C1 C2 H7 110.074
C1 C2 H8 110.074 C2 C1 H3 114.011
C2 C1 F4 110.195 C2 C1 F5 110.195
H3 C1 F4 107.544 H3 C1 F5 107.544
F4 C1 F5 107.070 H6 C2 H7 109.066
H6 C2 H8 109.066 H7 C2 H8 109.067
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.476      
2 C -0.694      
3 H 0.175      
4 F -0.320      
5 F -0.320      
6 H 0.234      
7 H 0.225      
8 H 0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.278 2.355 0.000 2.372
CHELPG        
AIM        
ESP -2.262 0.788 0.000 2.396


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.369 0.709 0.000
y 0.709 -22.895 0.000
z 0.000 0.000 -25.481
Traceless
 xyz
x 2.819 0.709 0.000
y 0.709 0.530 0.000
z 0.000 0.000 -3.349
Polar
3z2-r2-6.698
x2-y21.526
xy0.709
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.259 -0.026 0.000
y -0.026 3.224 0.000
z 0.000 0.000 3.254


<r2> (average value of r2) Å2
<r2> 70.855
(<r2>)1/2 8.418