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

using model chemistry: B2PLYP/aug-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 B2PLYP/aug-cc-pVDZ
 hartrees
Energy at 0K-278.122959
Energy at 298.15K 
HF Energy-277.894437
Nuclear repulsion energy131.268092
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 B2PLYP/aug-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' 3175 3175 14.40 31.30 0.67 0.80
2 A' 3128 3128 26.73 113.86 0.24 0.39
3 A' 3076 3076 2.82 153.35 0.01 0.01
4 A' 1470 1470 5.60 4.44 0.75 0.86
5 A' 1429 1429 63.65 0.75 0.36 0.53
6 A' 1373 1373 2.06 0.69 0.50 0.66
7 A' 1155 1155 22.86 2.75 0.13 0.23
8 A' 1136 1136 100.66 3.71 0.54 0.70
9 A' 867 867 12.10 7.13 0.11 0.20
10 A' 554 554 6.20 0.97 0.27 0.43
11 A' 455 455 12.56 0.90 0.66 0.79
12 A" 3167 3167 8.81 48.95 0.75 0.86
13 A" 1470 1470 0.92 3.33 0.75 0.86
14 A" 1365 1365 14.45 3.68 0.75 0.86
15 A" 1122 1122 135.46 2.06 0.75 0.86
16 A" 929 929 92.36 3.00 0.75 0.86
17 A" 378 378 0.24 0.43 0.75 0.86
18 A" 229 229 0.06 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13238.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13238.9 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 B2PLYP/aug-cc-pVDZ
ABC
0.31036 0.29570 0.16990

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.172 0.000
C2 -0.903 1.044 0.000
H3 1.277 0.714 0.000
F4 0.323 -0.655 1.108
F5 0.323 -0.655 -1.108
H6 -1.800 0.413 0.000
H7 -0.902 1.680 0.894
H8 -0.902 1.680 -0.894

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50411.09751.38281.38282.13602.13762.1376
C21.50412.20542.37002.37001.09651.09681.0968
H31.09752.20542.00312.00313.09182.54562.5456
F41.38282.37002.00312.21612.62162.64463.3100
F51.38282.37002.00312.21612.62163.31002.6446
H62.13601.09653.09182.62162.62161.79161.7916
H72.13761.09682.54562.64463.31001.79161.7881
H82.13761.09682.54563.31002.64461.79161.7881

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 109.439 C1 C2 H7 109.550
C1 C2 H8 109.550 C2 C1 H3 115.031
C2 C1 F4 110.287 C2 C1 F5 110.287
H3 C1 F4 107.159 H3 C1 F5 107.159
F4 C1 F5 106.511 H6 C2 H7 109.544
H6 C2 H8 109.544 H7 C2 H8 109.200
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.274      
2 C 0.424      
3 H -0.358      
4 F -0.478      
5 F -0.478      
6 H -0.135      
7 H -0.124      
8 H -0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.370 2.370 0.000 2.398
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.831 0.543 0.005
y 0.543 -23.329 -0.009
z 0.005 -0.009 -25.965
Traceless
 xyz
x 2.816 0.543 0.005
y 0.543 0.569 -0.009
z 0.005 -0.009 -3.385
Polar
3z2-r2-6.770
x2-y21.498
xy0.543
xz0.005
yz-0.009


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.345 -0.204 -0.000
y -0.204 4.432 0.001
z -0.000 0.001 4.430


<r2> (average value of r2) Å2
<r2> 73.155
(<r2>)1/2 8.553