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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP2/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-178.609907
Energy at 298.15K-178.615483
HF Energy-178.102614
Nuclear repulsion energy78.471657
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/aug-cc-pVDZ
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' 3169 3039 19.19      
2 A' 3100 2973 34.38      
3 A' 3075 2949 10.16      
4 A' 1514 1452 0.77      
5 A' 1492 1431 1.54      
6 A' 1417 1359 25.04      
7 A' 1381 1324 0.71      
8 A' 1123 1077 7.97      
9 A' 1073 1029 90.52      
10 A' 883 847 24.46      
11 A' 406 389 6.55      
12 A" 3190 3059 31.34      
13 A" 3160 3031 10.50      
14 A" 1473 1412 5.05      
15 A" 1293 1240 0.21      
16 A" 1180 1132 3.95      
17 A" 808 775 0.50      
18 A" 261 251 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 14998.7 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 14383.8 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/aug-cc-pVDZ
ABC
1.18757 0.30778 0.26980

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.564 0.000
C2 1.139 -0.436 0.000
F3 -1.237 -0.126 0.000
H4 0.009 1.200 0.898
H5 0.009 1.200 -0.898
H6 2.100 0.104 0.000
H7 1.093 -1.072 0.895
H8 1.093 -1.072 -0.895

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51521.41661.10061.10062.14962.16172.1617
C21.51522.39602.18152.18151.10221.09951.0995
F31.41662.39602.02932.02933.34492.66942.6694
H41.10062.18152.02931.79632.52582.51763.0911
H51.10062.18152.02931.79632.52583.09112.5176
H62.14961.10223.34492.52582.52581.78861.7886
H72.16171.09952.66942.51763.09111.78861.7905
H82.16171.09952.66943.09112.51761.78861.7905

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.409 C1 C2 H7 110.522
C1 C2 H8 110.522 C2 C1 F3 109.572
C2 C1 H4 112.037 C2 C1 H5 112.037
F3 C1 H4 106.774 F3 C1 H5 106.774
H4 C1 H5 109.377 H6 C2 H7 108.657
H6 C2 H8 108.657 H7 C2 H8 109.028
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability