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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: HSEh1PBE/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HSEh1PBE/aug-cc-pVDZ
 hartrees
Energy at 0K-589.471630
Energy at 298.15K 
HF Energy-589.471630
Nuclear repulsion energy183.762851
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 HSEh1PBE/aug-cc-pVDZ
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 2264 40.20 107.27 0.10 0.18
2 A1 809 779 80.35 8.89 0.00 0.00
3 A1 383 369 63.52 0.72 0.54 0.70
4 E 947 911 240.44 0.93 0.75 0.86
4 E 947 911 240.47 0.93 0.75 0.86
5 E 800 769 17.37 4.84 0.75 0.86
5 E 799 769 17.40 4.84 0.75 0.86
6 E 268 258 11.91 0.48 0.75 0.86
6 E 268 258 11.91 0.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3787.4 cm-1
Scaled (by 0.9622) Zero Point Vibrational Energy (zpe) 3644.3 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 HSEh1PBE/aug-cc-pVDZ
ABC
0.22627 0.22627 0.13036

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.340
H2 0.000 0.000 1.811
F3 0.000 1.506 -0.243
F4 1.304 -0.753 -0.243
F5 -1.304 -0.753 -0.243

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.47071.61541.61541.6154
H21.47072.54732.54732.5473
F31.61542.54732.60892.6089
F41.61542.54732.60892.6089
F51.61542.54732.60892.6089

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 111.180 H2 Si1 F4 111.180
H2 Si1 F5 111.180 F3 Si1 F4 107.709
F3 Si1 F5 107.709 F4 Si1 F5 107.709
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.500      
2 H 0.232      
3 F -0.577      
4 F -0.577      
5 F -0.577      


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 1.727 1.727
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.936 0.000 0.000
y 0.000 -29.936 0.000
z 0.000 0.000 -25.834
Traceless
 xyz
x -2.051 0.000 0.000
y 0.000 -2.051 0.000
z 0.000 0.000 4.102
Polar
3z2-r28.204
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 3.665 0.000 0.000
y 0.000 3.665 0.000
z 0.000 0.000 3.709


<r2> (average value of r2) Å2
<r2> 85.601
(<r2>)1/2 9.252