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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: HF/aug-cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-588.193360
Energy at 298.15K 
HF Energy-588.193360
Nuclear repulsion energy191.167829
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 HF/aug-cc-pV(T+d)Z
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 2463 2463 79.25 89.64 0.07 0.14
2 A1 913 913 99.23 4.07 0.00 0.00
3 A1 449 449 86.66 0.27 0.56 0.72
4 E 1059 1059 301.36 0.29 0.75 0.86
4 E 1059 1059 301.36 0.29 0.75 0.86
5 E 914 914 24.15 2.90 0.75 0.86
5 E 914 914 24.15 2.90 0.75 0.86
6 E 324 324 14.90 0.19 0.75 0.86
6 E 324 324 14.90 0.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4209.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4209.1 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 HF/aug-cc-pV(T+d)Z
ABC
0.24494 0.24494 0.14088

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pV(T+d)Z

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.320
H2 0.000 0.000 1.768
F3 0.000 1.449 -0.231
F4 1.255 -0.724 -0.231
F5 -1.255 -0.724 -0.231

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.44851.55031.55031.5503
H21.44852.46942.46942.4694
F31.55032.46942.50972.5097
F41.55032.46942.50972.5097
F51.55032.46942.50972.5097

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.825 H2 Si1 F4 110.825
H2 Si1 F5 110.825 F3 Si1 F4 108.084
F3 Si1 F5 108.084 F4 Si1 F5 108.085
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 2.142      
2 H -0.112      
3 F -0.677      
4 F -0.677      
5 F -0.677      


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 1.421 1.421
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.283 0.000 0.000
y 0.000 -29.283 0.000
z 0.000 0.000 -25.753
Traceless
 xyz
x -1.765 0.000 0.000
y 0.000 -1.765 0.000
z 0.000 0.000 3.530
Polar
3z2-r27.061
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 3.036 0.000 0.000
y 0.000 3.036 0.000
z 0.000 0.000 3.105


<r2> (average value of r2) Å2
<r2> 80.246
(<r2>)1/2 8.958