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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B2PLYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B2PLYP/Def2TZVPP
 hartrees
Energy at 0K-589.709481
Energy at 298.15K 
HF Energy-589.434028
Nuclear repulsion energy188.071111
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 B2PLYP/Def2TZVPP
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 2396 2396 65.30 86.15 0.12 0.21
2 A1 850 850 80.35 5.30 0.00 0.00
3 A1 418 418 68.67 0.74 0.63 0.77
4 E 998 998 258.68 0.40 0.75 0.86
4 E 998 998 258.66 0.40 0.75 0.86
5 E 848 848 20.37 5.52 0.75 0.86
5 E 848 848 20.37 5.52 0.75 0.86
6 E 301 301 12.05 0.50 0.75 0.86
6 E 301 301 12.05 0.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3978.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3978.1 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 B2PLYP/Def2TZVPP
ABC
0.23705 0.23705 0.13589

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.322
H2 0.000 0.000 1.774
F3 0.000 1.475 -0.233
F4 1.278 -0.738 -0.233
F5 -1.278 -0.738 -0.233

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45221.57611.57611.5761
H21.45222.49082.49082.4908
F31.57612.49082.55532.5553
F41.57612.49082.55532.5553
F51.57612.49082.55532.5553

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.605 H2 Si1 F4 110.605
H2 Si1 F5 110.605 F3 Si1 F4 108.314
F3 Si1 F5 108.314 F4 Si1 F5 108.314
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.977      
2 H -0.073      
3 F -0.301      
4 F -0.301      
5 F -0.301      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.400 0.000 0.000
y 0.000 -29.400 0.000
z 0.000 0.000 -26.060
Traceless
 xyz
x -1.670 0.000 0.000
y 0.000 -1.670 0.000
z 0.000 0.000 3.341
Polar
3z2-r26.681
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 3.177 0.000 0.000
y 0.000 3.177 0.000
z 0.000 0.000 3.230


<r2> (average value of r2) Å2
<r2> 82.498
(<r2>)1/2 9.083