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

using model chemistry: MP2=FULL/cc-pVQZ

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-pVQZ
 hartrees
Energy at 0K-278.111188
Energy at 298.15K 
HF Energy-277.076938
Nuclear repulsion energy133.071286
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-pVQZ
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' 3220 3082 7.30 32.98 0.70 0.83
2 A' 3151 3016 30.72 95.34 0.24 0.39
3 A' 3115 2981 1.44 139.76 0.01 0.01
4 A' 1508 1443 5.74 5.05 0.74 0.85
5 A' 1460 1397 72.62 1.29 0.27 0.42
6 A' 1406 1346 0.52 0.41 0.62 0.77
7 A' 1179 1128 55.97 2.22 0.14 0.24
8 A' 1176 1126 69.53 3.04 0.58 0.73
9 A' 892 854 7.48 5.63 0.14 0.24
10 A' 577 552 5.40 0.87 0.35 0.52
11 A' 474 454 12.69 0.82 0.63 0.78
12 A" 3218 3080 4.58 43.86 0.75 0.86
13 A" 1509 1444 0.73 3.61 0.75 0.86
14 A" 1412 1352 18.01 4.16 0.75 0.86
15 A" 1170 1120 152.46 1.91 0.75 0.86
16 A" 969 927 59.31 2.45 0.75 0.86
17 A" 387 371 0.18 0.35 0.75 0.86
18 A" 242 231 0.06 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13532.3 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 12951.7 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-pVQZ
ABC
0.31866 0.30387 0.17449

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.321 0.165 0.000
C2 -0.896 1.028 0.000
H3 1.257 0.715 0.000
F4 0.321 -0.643 1.094
F5 0.321 -0.643 -1.094
H6 -1.777 0.397 0.000
H7 -0.901 1.654 0.883
H8 -0.901 1.654 -0.883

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49131.08511.36011.36012.11042.11852.1185
C21.49132.17542.33842.33841.08301.08271.0827
H31.08512.17541.97881.97883.05002.51342.5134
F41.36012.33841.97882.18732.58432.61033.2675
F51.36012.33841.97882.18732.58433.26752.6103
H62.11041.08303.05002.58432.58431.76821.7682
H72.11851.08272.51342.61033.26751.76821.7662
H82.11851.08272.51343.26752.61031.76821.7662

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 109.098 C1 C2 H7 109.757
C1 C2 H8 109.757 C2 C1 H3 114.278
C2 C1 F4 110.103 C2 C1 F5 110.103
H3 C1 F4 107.511 H3 C1 F5 107.511
F4 C1 F5 107.043 H6 C2 H7 109.458
H6 C2 H8 109.458 H7 C2 H8 109.299
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability