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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP2=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-175.875176
Energy at 298.15K-175.880624
HF Energy-175.751612
Nuclear repulsion energy77.502296
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/STO-3G
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' 3564 3168 1.42      
2 A' 3381 3005 0.96      
3 A' 3340 2969 12.76      
4 A' 1740 1547 0.07      
5 A' 1713 1522 1.57      
6 A' 1614 1435 4.85      
7 A' 1570 1395 17.04      
8 A' 1289 1146 7.95      
9 A' 1183 1052 5.01      
10 A' 1002 891 0.06      
11 A' 419 373 1.64      
12 A" 3565 3168 2.14      
13 A" 3445 3063 12.66      
14 A" 1721 1530 1.10      
15 A" 1426 1267 0.32      
16 A" 1275 1134 7.19      
17 A" 879 782 0.35      
18 A" 212 189 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 16668.5 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 14816.6 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 MP2=FULL/STO-3G
ABC
1.18897 0.29415 0.25937

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.559 0.000
C2 1.148 -0.507 0.000
F3 -1.265 -0.050 0.000
H4 0.104 1.213 0.899
H5 0.104 1.213 -0.899
H6 2.128 -0.000 0.000
H7 1.081 -1.147 0.895
H8 1.081 -1.147 -0.895

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.56661.40411.11701.11702.20022.20892.2089
C21.56662.45662.20402.20401.10271.10271.1027
F31.40412.45662.06842.06843.39372.74042.7404
H41.11702.20402.06841.79892.52552.55403.1216
H51.11702.20402.06841.79892.52553.12162.5540
H62.20021.10273.39372.52552.52551.79241.7924
H72.20891.10272.74042.55403.12161.79241.7909
H82.20891.10272.74043.12162.55401.79241.7909

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.803 C1 C2 H7 110.479
C1 C2 H8 110.479 C2 C1 F3 111.455
C2 C1 H4 109.279 C2 C1 H5 109.279
F3 C1 H4 109.731 F3 C1 H5 109.731
H4 C1 H5 107.271 H6 C2 H7 108.725
H6 C2 H8 108.725 H7 C2 H8 108.583
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability