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

using model chemistry: MP2=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-277.590069
Energy at 298.15K 
HF Energy-276.949688
Nuclear repulsion energy132.209320
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 MP2=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3268 3054 10.65 40.07 0.74 0.85
2 A' 3179 2970 53.20 92.60 0.26 0.41
3 A' 3156 2949 2.71 86.00 0.02 0.04
4 A' 1550 1448 4.15 14.58 0.75 0.86
5 A' 1500 1401 75.45 2.85 0.66 0.79
6 A' 1443 1348 4.76 1.01 0.75 0.86
7 A' 1202 1123 26.32 1.83 0.09 0.16
8 A' 1190 1112 88.37 4.96 0.74 0.85
9 A' 905 846 9.02 6.42 0.22 0.36
10 A' 571 534 7.07 0.81 0.50 0.66
11 A' 469 439 12.73 0.97 0.66 0.79
12 A" 3264 3050 8.65 48.58 0.75 0.86
13 A" 1551 1449 0.05 10.72 0.75 0.86
14 A" 1455 1359 40.11 8.75 0.75 0.86
15 A" 1208 1129 126.21 3.09 0.75 0.86
16 A" 1000 934 49.94 5.03 0.75 0.86
17 A" 387 361 0.04 0.22 0.75 0.86
18 A" 267 250 0.09 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13782.1 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 12878.0 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 MP2=FULL/6-31G**
ABC
0.31200 0.30234 0.17230

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.325 0.169 0.000
C2 -0.906 1.023 0.000
H3 1.258 0.731 0.000
F4 0.325 -0.642 1.106
F5 0.325 -0.642 -1.106
H6 -1.778 0.376 0.000
H7 -0.923 1.650 0.886
H8 -0.923 1.650 -0.886

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49791.08941.37181.37182.11302.12982.1298
C21.49792.18392.34762.34761.08591.08581.0858
H31.08942.18391.99511.99513.05702.52762.5276
F41.37182.34761.99512.21192.58492.61973.2836
F51.37182.34761.99512.21192.58493.28362.6197
H62.11301.08593.05702.58492.58491.77211.7721
H72.12981.08582.52762.61973.28361.77211.7720
H82.12981.08582.52763.28362.61971.77211.7720

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 108.678 C1 C2 H7 110.015
C1 C2 H8 110.015 C2 C1 H3 114.221
C2 C1 F4 109.704 C2 C1 F5 109.704
H3 C1 F4 107.764 H3 C1 F5 107.764
F4 C1 F5 107.446 H6 C2 H7 109.374
H6 C2 H8 109.374 H7 C2 H8 109.368
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability