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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-277.958384
Energy at 298.15K 
HF Energy-277.055133
Nuclear repulsion energy133.069799
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/cc-pVTZ
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' 3210 3047 10.14 32.98 0.67 0.81
2 A' 3153 2993 34.72 101.08 0.27 0.42
3 A' 3120 2963 1.74 125.51 0.01 0.02
4 A' 1514 1438 5.57 6.46 0.74 0.85
5 A' 1468 1394 76.04 1.84 0.28 0.44
6 A' 1410 1338 0.98 0.41 0.75 0.86
7 A' 1185 1125 98.29 2.74 0.64 0.78
8 A' 1179 1119 27.22 2.36 0.21 0.34
9 A' 895 849 7.28 5.25 0.17 0.30
10 A' 579 550 5.55 0.86 0.44 0.61
11 A' 476 452 12.57 0.86 0.65 0.79
12 A" 3208 3046 5.67 46.12 0.75 0.86
13 A" 1516 1439 0.32 4.60 0.75 0.86
14 A" 1427 1355 21.46 5.40 0.75 0.86
15 A" 1182 1123 151.19 2.04 0.75 0.86
16 A" 976 926 51.38 2.79 0.75 0.86
17 A" 389 370 0.10 0.33 0.75 0.86
18 A" 261 248 0.08 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13573.7 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 12886.9 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 MP2=FULL/cc-pVTZ
ABC
0.31803 0.30444 0.17449

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.321 0.165 0.000
C2 -0.897 1.025 0.000
H3 1.253 0.719 0.000
F4 0.321 -0.642 1.095
F5 0.321 -0.642 -1.095
H6 -1.774 0.389 0.000
H7 -0.905 1.651 0.884
H8 -0.905 1.651 -0.884

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49151.08371.36021.36022.10782.11932.1193
C21.49152.17212.33722.33721.08311.08291.0829
H31.08372.17211.97941.97943.04542.51112.5111
F41.36022.33721.97942.18982.57972.60853.2672
F51.36022.33721.97942.18982.57973.26722.6085
H62.10781.08313.04542.57972.57971.76871.7687
H72.11931.08292.51112.60853.26721.76871.7674
H82.11931.08292.51113.26722.60851.76871.7674

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 108.873 C1 C2 H7 109.797
C1 C2 H8 109.797 C2 C1 H3 114.083
C2 C1 F4 109.998 C2 C1 F5 109.998
H3 C1 F4 107.646 H3 C1 F5 107.646
F4 C1 F5 107.207 H6 C2 H7 109.490
H6 C2 H8 109.490 H7 C2 H8 109.380
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability