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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP2=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 MP2=FULL/6-31G**
 hartrees
Energy at 0K-178.561532
Energy at 298.15K-178.567176
HF Energy-178.084918
Nuclear repulsion energy79.310820
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 MP2=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' 3243 3030 19.38      
2 A' 3145 2938 6.14      
3 A' 3140 2934 45.13      
4 A' 1593 1489 0.20      
5 A' 1564 1462 1.94      
6 A' 1490 1393 33.36      
7 A' 1452 1357 3.34      
8 A' 1170 1093 27.91      
9 A' 1122 1049 54.43      
10 A' 929 868 12.73      
11 A' 414 387 6.06      
12 A" 3257 3043 26.22      
13 A" 3201 2991 34.61      
14 A" 1548 1446 3.79      
15 A" 1341 1253 0.00      
16 A" 1234 1153 4.92      
17 A" 835 780 0.24      
18 A" 282 263 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 15479.9 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 14464.4 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 MP2=FULL/6-31G**
ABC
1.20833 0.31477 0.27541

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.561 0.000
C2 1.123 -0.445 0.000
F3 -1.224 -0.111 0.000
H4 0.034 1.196 0.885
H5 0.034 1.196 -0.885
H6 2.085 0.063 0.000
H7 1.062 -1.075 0.882
H8 1.062 -1.075 -0.882

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50731.39601.08961.08962.14392.14102.1410
C21.50732.37012.15892.15891.08821.08641.0864
F31.39602.37012.01772.01773.31362.63312.6331
H41.08962.15892.01771.76972.50522.49323.0561
H51.08962.15892.01771.76972.50523.05612.4932
H62.14391.08823.31362.50522.50521.76681.7668
H72.14101.08642.63312.49323.05611.76681.7650
H82.14101.08642.63313.05612.49321.76681.7650

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.344 C1 C2 H7 110.219
C1 C2 H8 110.219 C2 C1 F3 109.383
C2 C1 H4 111.458 C2 C1 H5 111.458
F3 C1 H4 107.904 F3 C1 H5 107.904
H4 C1 H5 108.604 H6 C2 H7 108.682
H6 C2 H8 108.682 H7 C2 H8 108.648
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability