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

using model chemistry: CISD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/Def2TZVPP
 hartrees
Energy at 0K-277.819837
Energy at 298.15K 
HF Energy-277.070161
Nuclear repulsion energy133.734471
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 CISD/Def2TZVPP
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' 3265 3265 18.33      
2 A' 3220 3220 31.48      
3 A' 3173 3173 2.70      
4 A' 1554 1554 10.77      
5 A' 1524 1524 70.87      
6 A' 1464 1464 0.97      
7 A' 1237 1237 106.62      
8 A' 1210 1210 32.95      
9 A' 919 919 7.48      
10 A' 601 601 6.03      
11 A' 492 492 14.45      
12 A" 3262 3262 9.80      
13 A" 1555 1555 0.05      
14 A" 1472 1472 26.74      
15 A" 1237 1237 174.30      
16 A" 1019 1019 48.36      
17 A" 398 398 0.08      
18 A" 246 246 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 13924.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13924.1 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 CISD/Def2TZVPP
ABC
0.32453 0.30405 0.17605

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.321 0.160 0.000
C2 -0.895 1.030 0.000
H3 1.251 0.710 0.000
F4 0.321 -0.643 1.083
F5 0.321 -0.643 -1.083
H6 -1.779 0.409 0.000
H7 -0.896 1.655 0.881
H8 -0.896 1.655 -0.881

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49521.08091.34771.34772.11462.12002.1200
C21.49522.17002.33412.33411.08061.08041.0804
H31.08092.17001.96651.96653.04532.50642.5064
F41.34772.33411.96652.16602.58602.60813.2586
F51.34772.33411.96652.16602.58603.25862.6081
H62.11461.08063.04532.58602.58601.76351.7635
H72.12001.08042.50642.60813.25861.76351.7619
H82.12001.08042.50643.25862.60811.76351.7619

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 109.303 C1 C2 H7 109.749
C1 C2 H8 109.749 C2 C1 H3 113.811
C2 C1 F4 110.272 C2 C1 F5 110.272
H3 C1 F4 107.631 H3 C1 F5 107.631
F4 C1 F5 106.947 H6 C2 H7 109.384
H6 C2 H8 109.384 H7 C2 H8 109.258
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability