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 SiHF3 (trifluorosilane)

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-304.166351
Energy at 298.15K 
HF Energy-304.166351
Nuclear repulsion energy89.650595
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 B3LYP/LANL2DZ
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 2353 2262 51.05 108.30 0.17 0.30
2 A1 747 718 68.96 8.22 0.00 0.00
3 A1 364 350 90.24 2.38 0.72 0.83
4 E 899 865 234.59 1.27 0.75 0.86
4 E 899 865 234.59 1.27 0.75 0.86
5 E 794 763 7.25 15.11 0.75 0.86
5 E 794 763 7.25 15.12 0.75 0.86
6 E 254 244 18.79 1.66 0.75 0.86
6 E 254 244 18.79 1.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3678.6 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 3535.9 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 B3LYP/LANL2DZ
ABC
0.21581 0.21581 0.12452

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.356
H2 0.000 0.000 1.818
F3 0.000 1.541 -0.252
F4 1.335 -0.771 -0.252
F5 -1.335 -0.771 -0.252

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.46161.65681.65681.6568
H21.46162.58062.58062.5806
F31.65682.58062.66942.6694
F41.65682.58062.66942.6694
F51.65682.58062.66942.6694

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 111.536 H2 Si1 F4 111.536
H2 Si1 F5 111.536 F3 Si1 F4 107.330
F3 Si1 F5 107.330 F4 Si1 F5 107.330
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.553      
2 H -0.073      
3 F -0.493      
4 F -0.493      
5 F -0.493      


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 2.716 2.716
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.245 0.000 0.000
y 0.000 -31.245 0.000
z 0.000 0.000 -24.648
Traceless
 xyz
x -3.298 0.000 0.000
y 0.000 -3.298 0.000
z 0.000 0.000 6.597
Polar
3z2-r213.194
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.638 0.000 0.000
y 0.000 2.638 0.000
z 0.000 0.000 2.515


<r2> (average value of r2) Å2
<r2> 87.800
(<r2>)1/2 9.370