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

using model chemistry: MP2/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-277.682926
Energy at 298.15K 
HF Energy-276.980942
Nuclear repulsion energy131.031344
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/aug-cc-pVDZ
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' 3201 3070 10.92 30.11 0.68 0.81
2 A' 3153 3023 26.44 105.16 0.24 0.38
3 A' 3090 2963 2.36 150.92 0.01 0.01
4 A' 1476 1415 5.85 4.33 0.75 0.86
5 A' 1435 1376 68.78 0.89 0.27 0.42
6 A' 1374 1318 0.92 0.52 0.59 0.74
7 A' 1162 1115 35.07 3.06 0.30 0.46
8 A' 1140 1093 81.49 3.52 0.32 0.49
9 A' 870 834 12.60 7.07 0.10 0.18
10 A' 553 531 6.40 0.96 0.27 0.42
11 A' 455 437 12.80 0.86 0.67 0.80
12 A" 3195 3064 6.68 45.41 0.75 0.86
13 A" 1476 1416 0.76 3.15 0.75 0.86
14 A" 1373 1316 15.71 3.56 0.75 0.86
15 A" 1128 1081 140.79 2.25 0.75 0.86
16 A" 936 898 81.46 2.84 0.75 0.86
17 A" 378 362 0.19 0.41 0.75 0.86
18 A" 240 230 0.06 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13316.5 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 12770.6 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/aug-cc-pVDZ
ABC
0.30859 0.29539 0.16943

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.324 0.175 0.000
C2 -0.907 1.042 0.000
H3 1.279 0.720 0.000
F4 0.324 -0.654 1.111
F5 0.324 -0.654 -1.111
H6 -1.800 0.402 0.000
H7 -0.908 1.677 0.897
H8 -0.908 1.677 -0.897

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50551.09971.38631.38632.13602.13982.1398
C21.50552.20972.37192.37191.09881.09911.0991
H31.09972.20972.00862.00863.09562.55022.5502
F41.38632.37192.00862.22222.61932.64563.3143
F51.38632.37192.00862.22222.61933.31432.6456
H62.13601.09883.09562.61932.61931.79661.7966
H72.13981.09912.55022.64563.31431.79661.7935
H82.13981.09912.55023.31432.64561.79661.7935

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 109.210 C1 C2 H7 109.484
C1 C2 H8 109.484 C2 C1 H3 115.145
C2 C1 F4 110.146 C2 C1 F5 110.146
H3 C1 F4 107.232 H3 C1 F5 107.232
F4 C1 F5 106.541 H6 C2 H7 109.651
H6 C2 H8 109.651 H7 C2 H8 109.347
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability