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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-277.601167
Energy at 298.15K 
HF Energy-276.961921
Nuclear repulsion energy131.544401
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 MP2/6-31+G**
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' 3257 3064 9.75 34.66 0.71 0.83
2 A' 3204 3013 30.42 101.21 0.28 0.44
3 A' 3144 2957 2.65 117.90 0.01 0.02
4 A' 1532 1441 5.05 8.48 0.75 0.86
5 A' 1481 1393 68.99 1.70 0.42 0.59
6 A' 1424 1340 8.05 1.09 0.66 0.80
7 A' 1191 1120 22.97 2.26 0.28 0.43
8 A' 1163 1094 101.21 4.21 0.51 0.67
9 A' 890 837 14.00 6.85 0.16 0.28
10 A' 562 529 7.83 0.84 0.38 0.55
11 A' 462 435 13.99 1.10 0.68 0.81
12 A" 3250 3057 6.25 51.19 0.75 0.86
13 A" 1531 1440 1.57 6.29 0.75 0.86
14 A" 1409 1325 28.82 5.52 0.75 0.86
15 A" 1163 1094 139.98 2.26 0.75 0.86
16 A" 966 908 94.32 4.88 0.75 0.86
17 A" 386 363 0.09 0.31 0.75 0.86
18 A" 251 236 0.06 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13633.4 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 12823.6 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 MP2/6-31+G**
ABC
0.30953 0.29874 0.17055

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.176 0.000
C2 -0.905 1.034 0.000
H3 1.269 0.715 0.000
F4 0.323 -0.650 1.110
F5 0.323 -0.650 -1.110
H6 -1.784 0.395 0.000
H7 -0.911 1.663 0.888
H8 -0.911 1.663 -0.888

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49841.08841.38371.38372.11872.12692.1269
C21.49842.19722.36172.36171.08751.08781.0878
H31.08842.19721.99721.99723.06982.53802.5380
F41.38372.36171.99722.22082.60092.63103.2963
F51.38372.36171.99722.22082.60093.29632.6310
H62.11871.08753.06982.60092.60091.77731.7773
H72.12691.08782.53802.63103.29631.77731.7758
H82.12691.08782.53803.29632.63101.77731.7758

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 109.000 C1 C2 H7 109.630
C1 C2 H8 109.630 C2 C1 H3 115.376
C2 C1 F4 109.993 C2 C1 F5 109.993
H3 C1 F4 107.176 H3 C1 F5 107.176
F4 C1 F5 106.733 H6 C2 H7 109.576
H6 C2 H8 109.576 H7 C2 H8 109.415
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability