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

using model chemistry: MP2/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 MP2/STO-3G
 hartrees
Energy at 0K-273.351919
Energy at 298.15K 
HF Energy-273.214246
Nuclear repulsion energy128.294220
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/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' 3569 3112 0.50 22.49 0.75 0.86
2 A' 3382 2949 0.02 33.80 0.03 0.06
3 A' 3303 2880 25.45 34.67 0.37 0.54
4 A' 1711 1492 1.11 15.59 0.75 0.86
5 A' 1594 1390 6.41 3.23 0.73 0.85
6 A' 1521 1326 35.96 5.22 0.71 0.83
7 A' 1249 1089 20.08 4.46 0.64 0.78
8 A' 1208 1053 22.27 5.11 0.57 0.73
9 A' 939 819 0.40 5.78 0.21 0.34
10 A' 557 486 4.48 0.79 0.55 0.71
11 A' 450 393 6.14 1.43 0.68 0.81
12 A" 3568 3111 0.28 24.31 0.75 0.86
13 A" 1716 1496 0.07 12.74 0.75 0.86
14 A" 1537 1340 46.74 4.98 0.75 0.86
15 A" 1319 1150 15.37 5.42 0.75 0.86
16 A" 1074 936 0.68 5.31 0.75 0.86
17 A" 365 318 0.04 0.42 0.75 0.86
18 A" 167 146 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14614.6 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 12742.4 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/STO-3G
ABC
0.29956 0.27674 0.16062

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.333 0.147 0.000
C2 -0.930 1.094 0.000
H3 1.273 0.773 0.000
F4 0.333 -0.677 1.130
F5 0.333 -0.677 -1.130
H6 -1.854 0.492 0.000
H7 -0.915 1.733 0.898
H8 -0.915 1.733 -0.898

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.57811.12961.39841.39842.21362.20912.2091
C21.57812.22622.45072.45071.10261.10251.1025
H31.12962.22622.06462.06463.13952.55312.5531
F41.39842.45072.06462.26032.72482.72383.3880
F51.39842.45072.06462.26032.72483.38802.7238
H62.21361.10263.13952.72482.72481.79641.7964
H72.20911.10252.55312.72383.38801.79641.7961
H82.20911.10252.55313.38802.72381.79641.7961

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 110.062 C1 C2 H7 109.724
C1 C2 H8 109.724 C2 C1 H3 109.487
C2 C1 F4 110.696 C2 C1 F5 110.696
H3 C1 F4 109.042 H3 C1 F5 109.042
F4 C1 F5 107.834 H6 C2 H7 109.110
H6 C2 H8 109.110 H7 C2 H8 109.090
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability