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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP2=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-178.579232
Energy at 298.15K-178.584844
HF Energy-178.093598
Nuclear repulsion energy78.994044
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/6-31+G**
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' 3229 3033 18.81      
2 A' 3155 2963 36.04      
3 A' 3132 2942 10.79      
4 A' 1573 1477 0.21      
5 A' 1549 1455 2.61      
6 A' 1471 1381 30.03      
7 A' 1435 1348 5.37      
8 A' 1153 1083 12.33      
9 A' 1091 1025 86.67      
10 A' 905 850 27.04      
11 A' 414 389 7.25      
12 A" 3251 3053 29.59      
13 A" 3219 3023 14.55      
14 A" 1531 1438 6.00      
15 A" 1326 1245 0.04      
16 A" 1215 1142 4.51      
17 A" 833 782 0.27      
18 A" 267 251 0.65      

Unscaled Zero Point Vibrational Energy (zpe) 15374.2 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 14439.5 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/6-31+G**
ABC
1.20329 0.31162 0.27291

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.563 0.000
C2 1.134 -0.428 0.000
F3 -1.230 -0.131 0.000
H4 0.004 1.191 0.889
H5 0.004 1.191 -0.889
H6 2.086 0.102 0.000
H7 1.086 -1.058 0.885
H8 1.086 -1.058 -0.885

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50621.41231.08821.08822.13642.14232.1423
C21.50622.38262.16562.16561.08961.08691.0869
F31.41232.38262.01502.01503.32422.64672.6467
H41.08822.16562.01501.77702.51242.49603.0617
H51.08822.16562.01501.77702.51243.06172.4960
H62.13641.08963.32422.51242.51241.76851.7685
H72.14231.08692.64672.49603.06171.76851.7691
H82.14231.08692.64673.06172.49601.76851.7691

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.738 C1 C2 H7 110.366
C1 C2 H8 110.366 C2 C1 F3 109.405
C2 C1 H4 112.168 C2 C1 H5 112.168
F3 C1 H4 106.664 F3 C1 H5 106.664
H4 C1 H5 109.476 H6 C2 H7 108.690
H6 C2 H8 108.690 H7 C2 H8 108.949
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability