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

using model chemistry: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G2
 hartrees
Energy at 0K-277.955414
Energy at 298.15K-277.950115
HF Energy-276.944300
Nuclear repulsion energy133.647919
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 HF/6-31G*
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' 3324 3132 79.15 31.04 0.02 0.04
2 A' 3302 3111 5.65 113.89 0.58 0.73
3 A' 3229 3043 6.51 101.25 0.03 0.05
4 A' 1630 1536 11.37 16.11 0.75 0.85
5 A' 1603 1511 73.44 2.07 0.43 0.60
6 A' 1541 1451 8.19 0.81 0.75 0.86
7 A' 1283 1209 91.72 2.16 0.35 0.52
8 A' 1254 1181 60.12 5.54 0.61 0.76
9 A' 948 893 11.21 7.13 0.23 0.37
10 A' 614 578 8.53 0.68 0.53 0.69
11 A' 503 474 16.28 0.80 0.56 0.72
12 A" 3306 3115 21.96 58.86 0.75 0.86
13 A" 1633 1539 0.48 10.31 0.75 0.86
14 A" 1558 1468 48.44 9.72 0.75 0.86
15 A" 1298 1223 160.99 3.01 0.75 0.86
16 A" 1072 1010 56.33 5.10 0.75 0.86
17 A" 408 384 0.01 0.14 0.75 0.86
18 A" 258 243 0.08 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14381.0 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 13549.7 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/6-31G*
ABC
0.31151 0.30175 0.17211

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.326 0.171 0.000
C2 -0.908 1.022 0.000
H3 1.264 0.732 0.000
F4 0.326 -0.642 1.106
F5 0.326 -0.642 -1.106
H6 -1.781 0.368 0.000
H7 -0.929 1.652 0.890
H8 -0.929 1.652 -0.890

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49871.09281.37311.37312.11602.13572.1357
C21.49872.19062.34862.34861.09101.09101.0910
H31.09282.19061.99801.99803.06622.53892.5389
F41.37312.34861.99802.21252.58532.62423.2903
F51.37312.34861.99802.21252.58533.29032.6242
H62.11601.09103.06622.58532.58531.78001.7800
H72.13571.09102.53892.62423.29031.78001.7807
H82.13571.09102.53893.29032.62421.78001.7807

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 109.286 C1 C2 H7 110.081
C1 C2 H8 110.081 C2 C1 H3 113.826
C2 C1 F4 109.993 C2 C1 F5 109.993
H3 C1 F4 107.807 H3 C1 F5 107.807
F4 C1 F5 107.170 H6 C2 H7 109.120
H6 C2 H8 109.120 H7 C2 H8 109.132
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability