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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: BLYP/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 BLYP/STO-3G
 hartrees
Energy at 0K-581.830972
Energy at 298.15K 
HF Energy-581.830972
Nuclear repulsion energy179.984704
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 BLYP/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 2432 2250 83.55 65.23 0.31 0.47
2 A1 756 700 18.56 5.75 0.00 0.00
3 A1 333 308 30.79 1.70 0.75 0.86
4 E 966 894 143.10 0.92 0.75 0.86
4 E 966 894 143.10 0.92 0.75 0.86
5 E 794 735 20.33 9.86 0.75 0.86
5 E 794 735 20.33 9.86 0.75 0.86
6 E 250 231 5.31 1.30 0.75 0.86
6 E 250 231 5.31 1.30 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3770.6 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 3488.6 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 BLYP/STO-3G
ABC
0.21701 0.21701 0.12475

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.347
H2 0.000 0.000 1.820
F3 0.000 1.540 -0.247
F4 1.333 -0.770 -0.247
F5 -1.333 -0.770 -0.247

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.47291.65051.65051.6505
H21.47292.57762.57762.5776
F31.65052.57762.66692.6669
F41.65052.57762.66692.6670
F51.65052.57762.66692.6670

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 111.104 H2 Si1 F4 111.104
H2 Si1 F5 111.104 F3 Si1 F4 107.790
F3 Si1 F5 107.790 F4 Si1 F5 107.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.799      
2 H -0.147      
3 F -0.217      
4 F -0.217      
5 F -0.217      


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 0.577 0.577
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.151 0.000 0.000
y 0.000 -25.151 0.000
z 0.000 0.000 -23.611
Traceless
 xyz
x -0.770 0.000 0.000
y 0.000 -0.770 0.000
z 0.000 0.000 1.540
Polar
3z2-r23.080
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 1.756 0.000 0.000
y 0.000 1.756 0.000
z 0.000 0.000 1.603


<r2> (average value of r2) Å2
<r2> 86.050
(<r2>)1/2 9.276