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

using model chemistry: PM6

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at PM6
 hartrees
Energy at 0K 
Energy at 298.15K-0.186501
HF Energy-0.186501
Nuclear repulsion energy111.252147
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 PM6
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' 2790 2964 48.77      
2 A' 2688 2855 129.99      
3 A' 2650 2815 7.80      
4 A' 1332 1416 86.03      
5 A' 1310 1392 133.21      
6 A' 1234 1311 56.52      
7 A' 1176 1250 6.33      
8 A' 1130 1201 59.87      
9 A' 960 1020 16.93      
10 A' 553 587 2.96      
11 A' 449 477 10.78      
12 A" 2692 2860 101.11      
13 A" 1277 1356 188.67      
14 A" 1236 1313 59.55      
15 A" 1144 1216 20.18      
16 A" 968 1028 4.87      
17 A" 362 385 0.08      
18 A" 128 136 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 12038.4 cm-1
Scaled (by 1.0624) Zero Point Vibrational Energy (zpe) 12789.6 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 PM6
ABC
0.33698 0.28474 0.17472

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM6

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.332 0.194 0.000
C2 -0.917 1.049 0.000
H3 1.295 0.752 0.000
F4 0.332 -0.670 1.052
F5 0.332 -0.670 -1.052
H6 -1.843 0.452 0.000
H7 -0.961 1.699 0.886
H8 -0.961 1.699 -0.886

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51391.11321.36121.36122.19042.17292.1729
C21.51392.23192.37112.37111.10161.09931.0993
H31.11322.23192.01412.01413.15242.60202.6020
F41.36122.37112.01412.10452.66412.70373.3223
F51.36122.37112.01412.10452.66413.32232.7037
H62.19041.10163.15242.66412.66411.76521.7652
H72.17291.09932.60202.70373.32231.76521.7715
H82.17291.09932.60203.32232.70371.76521.7715

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 112.798 C1 C2 H7 111.524
C1 C2 H8 111.524 C2 C1 H3 115.491
C2 C1 F4 111.006 C2 C1 F5 111.006
H3 C1 F4 108.554 H3 C1 F5 108.554
F4 C1 F5 101.250 H6 C2 H7 106.647
H6 C2 H8 106.647 H7 C2 H8 107.361
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability