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

using model chemistry: BLYP/aug-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 BLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-278.367654
Energy at 298.15K 
HF Energy-278.367654
Nuclear repulsion energy130.403744
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 BLYP/aug-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' 3053 3043 14.41 36.63 0.70 0.83
2 A' 2987 2977 31.37 141.18 0.20 0.33
3 A' 2979 2969 3.58 149.01 0.01 0.01
4 A' 1449 1444 4.41 4.27 0.75 0.86
5 A' 1382 1377 42.32 0.62 0.75 0.86
6 A' 1345 1341 12.19 1.40 0.44 0.61
7 A' 1119 1115 19.45 2.42 0.03 0.06
8 A' 1067 1063 115.50 3.48 0.70 0.83
9 A' 833 830 10.58 7.38 0.12 0.21
10 A' 540 538 5.59 1.17 0.24 0.39
11 A' 441 440 10.15 1.03 0.63 0.77
12 A" 3046 3035 9.74 54.37 0.75 0.86
13 A" 1448 1443 1.60 3.67 0.75 0.86
14 A" 1323 1318 12.05 3.77 0.75 0.86
15 A" 1077 1073 100.12 1.65 0.75 0.86
16 A" 872 869 128.39 3.24 0.75 0.86
17 A" 369 368 0.42 0.52 0.75 0.86
18 A" 218 217 0.05 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12773.3 cm-1
Scaled (by 0.9966) Zero Point Vibrational Energy (zpe) 12729.9 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 BLYP/aug-cc-pVTZ
ABC
0.30522 0.29229 0.16726

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.173 0.000
C2 -0.905 1.053 0.000
H3 1.280 0.711 0.000
F4 0.323 -0.660 1.119
F5 0.323 -0.660 -1.119
H6 -1.806 0.431 0.000
H7 -0.904 1.690 0.892
H8 -0.904 1.690 -0.892

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51141.09761.39471.39472.14452.14582.1458
C21.51142.21122.38672.38671.09511.09541.0954
H31.09762.21122.01172.01173.09812.55412.5541
F41.39472.38672.01172.23782.64082.66123.3274
F51.39472.38672.01172.23782.64083.32742.6612
H62.14451.09513.09812.64082.64081.78691.7869
H72.14581.09542.55412.66123.32741.78691.7830
H82.14581.09542.55413.32742.66121.78691.7830

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 109.693 C1 C2 H7 109.776
C1 C2 H8 109.776 C2 C1 H3 114.968
C2 C1 F4 110.360 C2 C1 F5 110.360
H3 C1 F4 107.036 H3 C1 F5 107.036
F4 C1 F5 106.685 H6 C2 H7 109.316
H6 C2 H8 109.316 H7 C2 H8 108.946
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.652      
2 C -0.651      
3 H 0.223      
4 F -0.402      
5 F -0.402      
6 H 0.174      
7 H 0.203      
8 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.393 2.312 0.000 2.345
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.972 0.460 0.000
y 0.460 -23.421 0.000
z 0.000 0.000 -26.052
Traceless
 xyz
x 2.764 0.460 0.000
y 0.460 0.591 0.000
z 0.000 0.000 -3.356
Polar
3z2-r2-6.711
x2-y21.449
xy0.460
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.677 -0.251 0.000
y -0.251 4.758 0.000
z 0.000 0.000 4.735


<r2> (average value of r2) Å2
<r2> 74.036
(<r2>)1/2 8.604