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

using model chemistry: CCD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-31G*
 hartrees
Energy at 0K-277.564509
Energy at 298.15K 
HF Energy-276.942830
Nuclear repulsion energy132.063660
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 CCD/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' 3196 3025 14.30      
2 A' 3133 2966 47.06      
3 A' 3103 2937 3.21      
4 A' 1539 1456 5.56      
5 A' 1501 1420 77.27      
6 A' 1443 1366 4.79      
7 A' 1208 1143 60.70      
8 A' 1195 1131 56.03      
9 A' 907 859 8.46      
10 A' 575 545 7.14      
11 A' 472 447 14.06      
12 A" 3193 3022 10.41      
13 A" 1541 1458 0.04      
14 A" 1457 1379 45.55      
15 A" 1224 1159 131.93      
16 A" 1008 954 41.62      
17 A" 387 366 0.04      
18 A" 260 246 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 13670.8 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 12939.4 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 CCD/6-31G*
ABC
0.31311 0.30023 0.17209

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.326 0.168 0.000
C2 -0.908 1.027 0.000
H3 1.266 0.731 0.000
F4 0.326 -0.644 1.103
F5 0.326 -0.644 -1.103
H6 -1.788 0.377 0.000
H7 -0.926 1.659 0.893
H8 -0.926 1.659 -0.893

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50361.09531.36981.36982.12422.14192.1419
C21.50362.19392.35222.35221.09411.09411.0941
H31.09532.19391.99761.99763.07412.54212.5421
F41.36982.35221.99762.20582.59372.63023.2949
F51.36982.35221.99762.20582.59373.29492.6302
H62.12421.09413.07412.59372.59371.78471.7847
H72.14191.09412.54212.63023.29491.78471.7855
H82.14191.09412.54213.29492.63021.78471.7855

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 108.691 C1 C2 H7 110.089
C1 C2 H8 110.089 C2 C1 H3 114.253
C2 C1 F4 109.801 C2 C1 F5 109.801
H3 C1 F4 107.741 H3 C1 F5 107.741
F4 C1 F5 107.246 H6 C2 H7 109.292
H6 C2 H8 109.292 H7 C2 H8 109.368
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability