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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-276.702708
Energy at 298.15K 
HF Energy-276.702708
Nuclear repulsion energy131.048156
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 B1B95/3-21G
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' 3198 3060 11.47 38.91 0.69 0.82
2 A' 3119 2984 53.20 107.10 0.28 0.43
3 A' 3113 2978 2.68 75.48 0.02 0.04
4 A' 1551 1484 5.68 20.03 0.75 0.86
5 A' 1478 1414 44.45 4.04 0.75 0.85
6 A' 1447 1384 30.98 3.30 0.75 0.86
7 A' 1192 1141 34.51 1.88 0.13 0.23
8 A' 1153 1103 84.09 5.37 0.73 0.85
9 A' 895 856 4.74 6.98 0.21 0.34
10 A' 544 521 7.05 1.01 0.59 0.74
11 A' 437 418 15.53 1.22 0.67 0.81
12 A" 3201 3062 6.55 51.59 0.75 0.86
13 A" 1558 1490 1.21 14.81 0.75 0.86
14 A" 1443 1381 42.53 12.33 0.75 0.86
15 A" 1220 1167 96.76 4.11 0.75 0.86
16 A" 1009 965 29.91 5.59 0.75 0.86
17 A" 349 334 0.00 0.36 0.75 0.86
18 A" 262 251 0.12 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13584.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 12996.4 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 B1B95/3-21G
ABC
0.30231 0.30120 0.16931

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.329 0.175 0.000
C2 -0.914 1.017 0.000
H3 1.244 0.767 0.000
F4 0.329 -0.642 1.125
F5 0.329 -0.642 -1.125
H6 -1.782 0.357 0.000
H7 -0.941 1.644 0.890
H8 -0.941 1.644 -0.890

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50101.09021.39061.39062.11902.13592.1359
C21.50102.17252.35842.35841.09011.08911.0891
H31.09022.17252.02252.02253.05402.51702.5170
F41.39062.35842.02252.24992.59262.62573.3013
F51.39062.35842.02252.24992.59263.30132.6257
H62.11901.09013.05402.59262.59261.77601.7760
H72.13591.08912.51702.62573.30131.77601.7800
H82.13591.08912.51703.30132.62571.77601.7800

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 108.697 C1 C2 H7 110.088
C1 C2 H8 110.088 C2 C1 H3 112.993
C2 C1 F4 109.240 C2 C1 F5 109.240
H3 C1 F4 108.627 H3 C1 F5 108.627
F4 C1 F5 107.992 H6 C2 H7 109.170
H6 C2 H8 109.170 H7 C2 H8 109.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.374      
2 C -0.688      
3 H 0.209      
4 F -0.304      
5 F -0.304      
6 H 0.251      
7 H 0.232      
8 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.321 2.170 0.000 2.194
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.094 0.643 0.000
y 0.643 -22.393 0.000
z 0.000 0.000 -24.923
Traceless
 xyz
x 2.564 0.643 0.000
y 0.643 0.616 0.000
z 0.000 0.000 -3.180
Polar
3z2-r2-6.359
x2-y21.299
xy0.643
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.999 -0.030 0.000
y -0.030 3.003 0.000
z 0.000 0.000 3.103


<r2> (average value of r2) Å2
<r2> 72.640
(<r2>)1/2 8.523