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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-277.490017
Energy at 298.15K 
HF Energy-276.943797
Nuclear repulsion energy132.802739
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 CID/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' 3273 3024 18.11      
2 A' 3226 2980 45.05      
3 A' 3179 2937 3.24      
4 A' 1576 1456 6.83      
5 A' 1542 1424 78.92      
6 A' 1481 1368 5.65      
7 A' 1238 1144 76.01      
8 A' 1223 1129 50.96      
9 A' 928 857 9.29      
10 A' 590 545 7.54      
11 A' 484 447 14.82      
12 A" 3270 3020 11.28      
13 A" 1578 1458 0.00      
14 A" 1495 1381 46.80      
15 A" 1254 1158 143.89      
16 A" 1034 955 45.48      
17 A" 395 365 0.03      
18 A" 263 243 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 14014.0 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 12944.7 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 CID/6-31G*
ABC
0.31736 0.30271 0.17393

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.325 0.166 0.000
C2 -0.905 1.023 0.000
H3 1.258 0.725 0.000
F4 0.325 -0.641 1.095
F5 0.325 -0.641 -1.095
H6 -1.781 0.380 0.000
H7 -0.922 1.652 0.887
H8 -0.922 1.652 -0.887

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49871.08741.36101.36102.11702.13282.1328
C21.49872.18262.34162.34161.08771.08751.0875
H31.08742.18261.98441.98443.05852.52882.5288
F41.36102.34161.98442.19082.58432.61883.2779
F51.36102.34161.98442.19082.58433.27792.6188
H62.11701.08773.05852.58432.58431.77361.7736
H72.13281.08752.52882.61883.27791.77361.7742
H82.13281.08752.52883.27792.61881.77361.7742

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 108.833 C1 C2 H7 110.092
C1 C2 H8 110.092 C2 C1 H3 114.181
C2 C1 F4 109.841 C2 C1 F5 109.841
H3 C1 F4 107.763 H3 C1 F5 107.763
F4 C1 F5 107.194 H6 C2 H7 109.248
H6 C2 H8 109.248 H7 C2 H8 109.310
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability