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

using model chemistry: B3LYP/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-278.422324
Energy at 298.15K 
HF Energy-278.422324
Nuclear repulsion energy132.071801
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-pVTZ
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' 3129 3025 16.13 39.47 0.70 0.83
2 A' 3060 2958 38.49 123.36 0.24 0.39
3 A' 3050 2949 3.22 124.68 0.01 0.02
4 A' 1485 1435 4.63 6.92 0.75 0.86
5 A' 1432 1384 64.23 1.89 0.47 0.64
6 A' 1393 1346 2.96 0.86 0.56 0.71
7 A' 1160 1121 35.93 1.41 0.06 0.11
8 A' 1134 1096 102.27 3.53 0.68 0.81
9 A' 871 842 7.58 5.53 0.19 0.32
10 A' 567 548 5.59 0.90 0.44 0.61
11 A' 464 449 11.84 0.98 0.64 0.78
12 A" 3125 3021 10.77 53.56 0.75 0.86
13 A" 1486 1436 0.82 5.59 0.75 0.86
14 A" 1387 1340 18.52 5.61 0.75 0.86
15 A" 1141 1103 130.67 1.94 0.75 0.86
16 A" 943 912 79.36 3.17 0.75 0.86
17 A" 382 369 0.18 0.39 0.75 0.86
18 A" 229 221 0.07 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13217.9 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 12776.5 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 B3LYP/cc-pVTZ
ABC
0.31440 0.29864 0.17169

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.165 0.000
C2 -0.900 1.040 0.000
H3 1.266 0.714 0.000
F4 0.322 -0.650 1.101
F5 0.322 -0.650 -1.101
H6 -1.792 0.415 0.000
H7 -0.904 1.672 0.887
H8 -0.904 1.672 -0.887

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50261.09191.37031.37032.12872.13502.1350
C21.50262.19012.35832.35831.08911.08901.0890
H31.09192.19011.99121.99123.07252.53192.5319
F41.37032.35831.99122.20282.61082.63423.2934
F51.37032.35831.99122.20282.61083.29342.6342
H62.12871.08913.07252.61082.61081.77631.7763
H72.13501.08902.53192.63423.29341.77631.7737
H82.13501.08902.53193.29342.63421.77631.7737

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 109.402 C1 C2 H7 109.912
C1 C2 H8 109.912 C2 C1 H3 114.232
C2 C1 F4 110.258 C2 C1 F5 110.258
H3 C1 F4 107.403 H3 C1 F5 107.403
F4 C1 F5 106.979 H6 C2 H7 109.276
H6 C2 H8 109.276 H7 C2 H8 109.045
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.372      
2 C -0.287      
3 H 0.038      
4 F -0.217      
5 F -0.217      
6 H 0.109      
7 H 0.101      
8 H 0.101      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.341 2.156 0.000 2.182
CHELPG        
AIM        
ESP -2.106 0.694 0.000 2.218


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.623 0.507 0.000
y 0.507 -22.913 0.000
z 0.000 0.000 -25.292
Traceless
 xyz
x 2.480 0.507 0.000
y 0.507 0.545 0.000
z 0.000 0.000 -3.024
Polar
3z2-r2-6.049
x2-y21.290
xy0.507
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.990 -0.150 0.000
y -0.150 3.975 0.000
z 0.000 0.000 3.963


<r2> (average value of r2) Å2
<r2> 72.269
(<r2>)1/2 8.501