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

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/6-31G*
 hartrees
Energy at 0K-277.597903
Energy at 298.15K 
HF Energy-276.942392
Nuclear repulsion energy131.837977
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 CCSD(T)=FULL/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' 3172 3079        
2 A' 3104 3013        
3 A' 3080 2989        
4 A' 1529 1484        
5 A' 1485 1442        
6 A' 1430 1388        
7 A' 1194 1159        
8 A' 1179 1145        
9 A' 897 871        
10 A' 567 551        
11 A' 465 452        
12 A" 3168 3075        
13 A" 1531 1486        
14 A" 1442 1399        
15 A" 1202 1167        
16 A" 994 965        
17 A" 382 371        
18 A" 258 250        

Unscaled Zero Point Vibrational Energy (zpe) 13538.6 cm-1
Scaled (by 0.9707) Zero Point Vibrational Energy (zpe) 13141.9 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 CCSD(T)=FULL/6-31G*
ABC
0.31124 0.30007 0.17157

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.327 0.170 0.000
C2 -0.910 1.025 0.000
H3 1.268 0.734 0.000
F4 0.327 -0.644 1.106
F5 0.327 -0.644 -1.106
H6 -1.788 0.371 0.000
H7 -0.929 1.658 0.894
H8 -0.929 1.658 -0.894

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50361.09701.37351.37352.12452.14302.1430
C21.50362.19692.35382.35381.09551.09551.0955
H31.09702.19692.00202.00203.07742.54582.5458
F41.37352.35382.00202.21272.59372.63143.2985
F51.37352.35382.00202.21272.59373.29852.6314
H62.12451.09553.07742.59372.59371.78721.7872
H72.14301.09552.54582.63143.29851.78721.7878
H82.14301.09552.54583.29852.63141.78721.7878

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 108.633 C1 C2 H7 110.089
C1 C2 H8 110.089 C2 C1 H3 114.386
C2 C1 F4 109.707 C2 C1 F5 109.707
H3 C1 F4 107.735 H3 C1 F5 107.735
F4 C1 F5 107.315 H6 C2 H7 109.317
H6 C2 H8 109.317 H7 C2 H8 109.375
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability