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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP3=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 MP3=FULL/6-31G*
 hartrees
Energy at 0K-178.541370
Energy at 298.15K-178.547002
HF Energy-178.076543
Nuclear repulsion energy79.195604
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 MP3=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' 3196 2999 21.51      
2 A' 3116 2924 15.66      
3 A' 3113 2921 31.52      
4 A' 1593 1495 0.21      
5 A' 1561 1465 2.49      
6 A' 1494 1402 33.65      
7 A' 1456 1366 4.25      
8 A' 1179 1106 40.69      
9 A' 1129 1059 47.19      
10 A' 934 877 11.72      
11 A' 418 392 6.51      
12 A" 3208 3011 30.54      
13 A" 3163 2968 30.13      
14 A" 1545 1449 4.93      
15 A" 1339 1257 0.00      
16 A" 1237 1161 5.34      
17 A" 836 785 0.43      
18 A" 273 257 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 15395.3 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 14445.4 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 MP3=FULL/6-31G*
ABC
1.20109 0.31454 0.27514

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.556 0.000
C2 1.116 -0.458 0.000
F3 -1.224 -0.093 0.000
H4 0.062 1.196 0.888
H5 0.062 1.196 -0.888
H6 2.085 0.050 0.000
H7 1.056 -1.095 0.887
H8 1.056 -1.095 -0.887

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50841.38601.09601.09602.14542.15092.1509
C21.50842.36912.15322.15321.09411.09301.0930
F31.38602.36912.02642.02643.31252.64382.6438
H41.09602.15322.02641.77502.48832.49703.0632
H51.09602.15322.02641.77502.48833.06322.4970
H62.14541.09413.31252.48832.48831.77651.7765
H72.15091.09302.64382.49703.06321.77651.7735
H82.15091.09302.64383.06322.49701.77651.7735

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.025 C1 C2 H7 110.531
C1 C2 H8 110.531 C2 C1 F3 109.793
C2 C1 H4 110.528 C2 C1 H5 110.528
F3 C1 H4 108.897 F3 C1 H5 108.897
H4 C1 H5 108.150 H6 C2 H7 108.630
H6 C2 H8 108.630 H7 C2 H8 108.438
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability