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: SVWN/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at SVWN/6-31+G**
 hartrees
Energy at 0K-587.599600
Energy at 298.15K 
HF Energy-587.599600
Nuclear repulsion energy186.169342
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 SVWN/6-31+G**
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 2318 2283 51.90 106.89 0.12 0.22
2 A1 828 816 80.40 8.33 0.00 0.00
3 A1 390 384 62.97 1.11 0.68 0.81
4 E 978 964 245.66 0.94 0.75 0.86
4 E 978 964 245.66 0.94 0.75 0.86
5 E 782 770 20.68 8.58 0.75 0.86
5 E 782 770 20.68 8.58 0.75 0.86
6 E 276 272 12.67 0.81 0.75 0.86
6 E 276 272 12.67 0.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3803.5 cm-1
Scaled (by 0.9851) Zero Point Vibrational Energy (zpe) 3746.9 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 SVWN/6-31+G**
ABC
0.23228 0.23228 0.13364

See section I.F.4 to change rotational constant units
Geometric Data calculated at SVWN/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.331
H2 0.000 0.000 1.804
F3 0.000 1.488 -0.238
F4 1.288 -0.744 -0.238
F5 -1.288 -0.744 -0.238

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.47261.59291.59291.5929
H21.47262.52642.52642.5264
F31.59292.52642.57672.5767
F41.59292.52642.57672.5767
F51.59292.52642.57672.5767

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.940 H2 Si1 F4 110.940
H2 Si1 F5 110.940 F3 Si1 F4 107.963
F3 Si1 F5 107.963 F4 Si1 F5 107.963
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.786      
2 H -0.038      
3 F -0.249      
4 F -0.249      
5 F -0.249      


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 1.597 1.597
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.862 0.000 0.000
y 0.000 -29.862 0.000
z 0.000 0.000 -25.990
Traceless
 xyz
x -1.936 0.000 0.000
y 0.000 -1.936 0.000
z 0.000 0.000 3.872
Polar
3z2-r27.744
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 3.448 0.000 0.000
y 0.000 3.448 0.000
z 0.000 0.000 3.516


<r2> (average value of r2) Å2
<r2> 83.920
(<r2>)1/2 9.161