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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: PBE1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-581.602031
Energy at 298.15K 
HF Energy-581.602031
Nuclear repulsion energy182.549825
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 PBE1PBE/STO-3G
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 2612 2304 48.58 56.69 0.31 0.47
2 A1 797 703 22.86 5.07 0.00 0.00
3 A1 361 318 41.56 1.50 0.75 0.86
4 E 1015 896 152.03 1.01 0.75 0.86
4 E 1015 896 152.03 1.01 0.75 0.86
5 E 853 752 22.44 9.79 0.75 0.86
5 E 853 752 22.44 9.79 0.75 0.86
6 E 272 240 7.73 1.25 0.75 0.86
6 E 272 240 7.73 1.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4025.4 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 3550.8 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 PBE1PBE/STO-3G
ABC
0.22324 0.22324 0.12857

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.345
H2 0.000 0.000 1.798
F3 0.000 1.517 -0.246
F4 1.314 -0.758 -0.246
F5 -1.314 -0.758 -0.246

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45231.62781.62781.6278
H21.45232.54472.54472.5447
F31.62782.54472.62702.6270
F41.62782.54472.62702.6270
F51.62782.54472.62702.6270

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 111.288 H2 Si1 F4 111.288
H2 Si1 F5 111.288 F3 Si1 F4 107.595
F3 Si1 F5 107.595 F4 Si1 F5 107.595
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.894      
2 H -0.134      
3 F -0.253      
4 F -0.253      
5 F -0.253      


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 0.876 0.876
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.486 0.000 0.000
y 0.000 -25.486 0.000
z 0.000 0.000 -23.262
Traceless
 xyz
x -1.112 0.000 0.000
y 0.000 -1.112 0.000
z 0.000 0.000 2.223
Polar
3z2-r24.447
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 1.597 0.000 0.000
y 0.000 1.597 0.000
z 0.000 0.000 1.489


<r2> (average value of r2) Å2
<r2> 84.096
(<r2>)1/2 9.170