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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP2/aug-cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-178.771812
Energy at 298.15K-178.777407
HF Energy-178.152382
Nuclear repulsion energy79.273771
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-pVTZ
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 3022 15.81      
2 A' 3095 2949 33.37      
3 A' 3082 2936 7.99      
4 A' 1545 1472 1.18      
5 A' 1521 1450 1.75      
6 A' 1436 1368 24.72      
7 A' 1409 1343 0.99      
8 A' 1137 1083 19.73      
9 A' 1090 1038 86.12      
10 A' 899 857 17.43      
11 A' 412 393 6.15      
12 A" 3188 3038 23.53      
13 A" 3150 3002 12.72      
14 A" 1503 1433 5.57      
15 A" 1316 1254 0.26      
16 A" 1199 1142 4.19      
17 A" 819 780 0.66      
18 A" 257 245 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 15114.3 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 14402.4 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/aug-cc-pVTZ
ABC
1.21246 0.31371 0.27498

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.553 0.000
C2 1.117 -0.455 0.000
F3 -1.224 -0.094 0.000
H4 0.054 1.188 0.885
H5 0.054 1.188 -0.885
H6 2.076 0.063 0.000
H7 1.066 -1.089 0.884
H8 1.066 -1.089 -0.884

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50471.38451.09131.09132.13292.14722.1472
C21.50472.36932.14862.14861.08961.08871.0887
F31.38452.36932.01522.01523.30392.64852.6485
H41.09132.14862.01521.77082.47792.49163.0559
H51.09132.14862.01521.77082.47793.05592.4916
H62.13291.08963.30392.47792.47791.76851.7685
H72.14721.08872.64852.49163.05591.76851.7679
H82.14721.08872.64853.05592.49161.76851.7679

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.566 C1 C2 H7 110.758
C1 C2 H8 110.758 C2 C1 F3 110.113
C2 C1 H4 110.709 C2 C1 H5 110.709
F3 C1 H4 108.392 F3 C1 H5 108.392
H4 C1 H5 108.452 H6 C2 H7 108.559
H6 C2 H8 108.559 H7 C2 H8 108.580
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability