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

using model chemistry: MP2=FULL/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=FULL/6-31+G**
 hartrees
Energy at 0K-277.617024
Energy at 298.15K 
HF Energy-276.962108
Nuclear repulsion energy131.693261
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/6-31+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' 3261 3063 9.34 34.91 0.71 0.83
2 A' 3206 3011 30.63 100.41 0.28 0.44
3 A' 3146 2955 2.58 117.40 0.01 0.02
4 A' 1534 1441 5.13 8.43 0.75 0.86
5 A' 1484 1393 69.55 1.70 0.42 0.59
6 A' 1426 1340 7.88 1.09 0.66 0.79
7 A' 1192 1119 22.96 2.23 0.28 0.43
8 A' 1165 1094 101.24 4.19 0.51 0.67
9 A' 892 838 13.78 6.79 0.16 0.28
10 A' 563 529 7.73 0.83 0.38 0.55
11 A' 464 436 14.03 1.09 0.67 0.81
12 A" 3254 3057 6.09 50.88 0.75 0.86
13 A" 1534 1440 1.62 6.26 0.75 0.86
14 A" 1411 1326 28.83 5.52 0.75 0.86
15 A" 1165 1094 140.37 2.24 0.75 0.86
16 A" 967 908 93.80 4.83 0.75 0.86
17 A" 387 364 0.09 0.30 0.75 0.86
18 A" 253 237 0.06 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13652.2 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 12822.1 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/6-31+G**
ABC
0.31023 0.29945 0.17097

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.176 0.000
C2 -0.904 1.032 0.000
H3 1.268 0.715 0.000
F4 0.323 -0.649 1.109
F5 0.323 -0.649 -1.109
H6 -1.782 0.392 0.000
H7 -0.912 1.660 0.887
H8 -0.912 1.660 -0.887

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49671.08741.38221.38222.11622.12482.1248
C21.49672.19492.35872.35871.08641.08671.0867
H31.08742.19491.99561.99563.06662.53572.5357
F41.38222.35871.99562.21812.59722.62813.2926
F51.38222.35871.99562.21812.59723.29262.6281
H62.11621.08643.06662.59722.59721.77531.7753
H72.12481.08672.53572.62813.29261.77531.7738
H82.12481.08672.53573.29262.62811.77531.7738

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 108.990 C1 C2 H7 109.651
C1 C2 H8 109.651 C2 C1 H3 115.380
C2 C1 F4 109.966 C2 C1 F5 109.966
H3 C1 F4 107.210 H3 C1 F5 107.210
F4 C1 F5 106.715 H6 C2 H7 109.564
H6 C2 H8 109.564 H7 C2 H8 109.406
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability