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

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-274.330632
Energy at 298.15K 
HF Energy-274.330632
Nuclear repulsion energy126.240986
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 BLYP/STO-3G
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' 3383 3130 1.55 25.98 0.75 0.86
2 A' 3207 2967 0.04 41.29 0.02 0.03
3 A' 2974 2752 55.41 46.15 0.35 0.52
4 A' 1624 1503 2.22 15.92 0.75 0.86
5 A' 1485 1374 3.40 3.53 0.70 0.83
6 A' 1396 1291 37.70 7.53 0.73 0.84
7 A' 1146 1061 24.07 2.02 0.29 0.45
8 A' 1076 996 37.02 5.66 0.72 0.84
9 A' 848 785 2.86 7.13 0.21 0.35
10 A' 522 483 1.70 1.03 0.52 0.69
11 A' 413 382 2.79 1.74 0.66 0.79
12 A" 3377 3124 1.16 28.85 0.75 0.86
13 A" 1625 1504 0.60 13.48 0.75 0.86
14 A" 1406 1300 51.76 5.56 0.75 0.86
15 A" 1181 1093 41.95 4.50 0.75 0.86
16 A" 974 901 6.47 4.84 0.75 0.86
17 A" 335 310 0.01 0.55 0.75 0.86
18 A" 152 141 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13561.6 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 12547.2 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 BLYP/STO-3G
ABC
0.28798 0.26906 0.15512

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.339 0.146 0.000
C2 -0.947 1.109 0.000
H3 1.287 0.790 0.000
F4 0.339 -0.685 1.154
F5 0.339 -0.685 -1.154
H6 -1.876 0.505 0.000
H7 -0.931 1.753 0.902
H8 -0.931 1.753 -0.902

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.60611.14621.42231.42232.24362.23782.2378
C21.60612.25602.49062.49061.10811.10841.1084
H31.14622.25602.09932.09933.17542.58042.5804
F41.42232.49062.09932.30892.76652.76003.4327
F51.42232.49062.09932.30892.76653.43272.7600
H62.24361.10813.17542.76652.76651.80641.8064
H72.23781.10842.58042.76003.43271.80641.8045
H82.23781.10842.58043.43272.76001.80641.8045

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 110.149 C1 C2 H7 109.686
C1 C2 H8 109.686 C2 C1 H3 108.962
C2 C1 F4 110.503 C2 C1 F5 110.503
H3 C1 F4 109.167 H3 C1 F5 109.167
F4 C1 F5 108.514 H6 C2 H7 109.163
H6 C2 H8 109.163 H7 C2 H8 108.972
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