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

using model chemistry: B3LYP/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/cc-pVQZ
 hartrees
Energy at 0K-278.447462
Energy at 298.15K 
HF Energy-278.447462
Nuclear repulsion energy132.049420
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 B3LYP/cc-pVQZ
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' 3128 3031 14.96 36.98 0.69 0.82
2 A' 3063 2967 34.31 118.09 0.24 0.39
3 A' 3049 2954 2.85 140.38 0.01 0.01
4 A' 1485 1439 4.83 5.41 0.75 0.85
5 A' 1431 1386 60.43 1.17 0.49 0.66
6 A' 1392 1349 3.73 0.97 0.42 0.59
7 A' 1159 1122 30.22 1.71 0.03 0.06
8 A' 1131 1095 107.36 3.26 0.72 0.84
9 A' 869 842 8.02 5.80 0.16 0.27
10 A' 566 548 5.54 0.92 0.36 0.53
11 A' 463 449 11.92 0.93 0.63 0.77
12 A" 3124 3027 9.66 51.28 0.75 0.86
13 A" 1486 1440 1.14 4.30 0.75 0.86
14 A" 1383 1340 15.89 4.47 0.75 0.86
15 A" 1134 1099 129.44 1.74 0.75 0.86
16 A" 937 907 87.79 2.86 0.75 0.86
17 A" 382 370 0.26 0.41 0.75 0.86
18 A" 229 221 0.06 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13204.7 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 12792.7 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 B3LYP/cc-pVQZ
ABC
0.31452 0.29828 0.17158

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.165 0.000
C2 -0.899 1.042 0.000
H3 1.266 0.711 0.000
F4 0.322 -0.651 1.101
F5 0.322 -0.651 -1.101
H6 -1.793 0.421 0.000
H7 -0.900 1.674 0.886
H8 -0.900 1.674 -0.886

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50251.09101.37091.37092.12962.13382.1338
C21.50252.19032.35972.35971.08851.08831.0883
H31.09102.19031.99011.99013.07272.53122.5312
F41.37092.35971.99012.20252.61372.63513.2935
F51.37092.35971.99012.20252.61373.29352.6351
H62.12961.08853.07272.61372.61371.77521.7752
H72.13381.08832.53122.63513.29351.77521.7723
H82.13381.08832.53123.29352.63511.77521.7723

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 109.521 C1 C2 H7 109.864
C1 C2 H8 109.864 C2 C1 H3 114.314
C2 C1 F4 110.328 C2 C1 F5 110.328
H3 C1 F4 107.326 H3 C1 F5 107.326
F4 C1 F5 106.894 H6 C2 H7 109.275
H6 C2 H8 109.275 H7 C2 H8 109.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.525      
2 C -0.280      
3 H -0.008      
4 F -0.271      
5 F -0.271      
6 H 0.115      
7 H 0.095      
8 H 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.358 2.240 0.000 2.268
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.646 0.485 0.000
y 0.485 -23.044 0.000
z 0.000 0.000 -25.545
Traceless
 xyz
x 2.648 0.485 0.000
y 0.485 0.552 0.000
z 0.000 0.000 -3.200
Polar
3z2-r2-6.401
x2-y21.398
xy0.485
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.199 -0.178 0.000
y -0.178 4.219 0.000
z 0.000 0.000 4.203


<r2> (average value of r2) Å2
<r2> 72.382
(<r2>)1/2 8.508