return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for SeF4 (Selenium tetrafluoride)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-2786.564205
Energy at 298.15K 
HF Energy-2786.564205
Nuclear repulsion energy459.815238
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 PBEPBE/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 655 649 21.50 12.83 0.00 0.01
2 A1 545 540 0.13 10.49 0.49 0.66
3 A1 301 299 26.74 1.47 0.57 0.72
4 A1 118 117 1.02 0.77 0.67 0.81
5 A2 287 284 0.00 2.61 0.75 0.86
6 B1 665 659 50.89 4.99 0.75 0.86
7 B1 187 185 11.65 0.02 0.75 0.86
8 B2 631 625 137.77 0.98 0.75 0.86
9 B2 319 316 10.14 1.58 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1854.4 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 1837.5 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 PBEPBE/3-21G
ABC
0.16182 0.10917 0.08608

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.343
F2 0.000 1.799 0.105
F3 0.000 -1.799 0.105
F4 1.384 0.000 -0.754
F5 -1.384 0.000 -0.754

Atom - Atom Distances (Å)
  Se1 F2 F3 F4 F5
Se11.81511.81511.76621.7662
F21.81513.59892.42742.4274
F31.81513.59892.42742.4274
F41.76622.42742.42742.7683
F51.76622.42742.42742.7683

picture of Selenium tetrafluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Se1 F3 164.945 F2 Se1 F4 85.332
F2 Se1 F5 85.332 F3 Se1 F4 85.332
F3 Se1 F5 85.332 F4 Se1 F5 103.199
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.421      
2 F -0.381      
3 F -0.381      
4 F -0.330      
5 F -0.330      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.228 2.228
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.141 0.000 0.000
y 0.000 -42.997 0.000
z 0.000 0.000 -34.579
Traceless
 xyz
x 1.647 0.000 0.000
y 0.000 -7.136 0.000
z 0.000 0.000 5.490
Polar
3z2-r210.980
x2-y25.855
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.373 0.000 0.000
y 0.000 4.613 0.000
z 0.000 0.000 2.271


<r2> (average value of r2) Å2
<r2> 131.088
(<r2>)1/2 11.449