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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-589.730991
Energy at 298.15K 
HF Energy-589.730991
Nuclear repulsion energy183.117050
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 mPW1PW91/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2362 2264 56.23 86.06 0.17 0.29
2 A1 826 792 74.16 4.73 0.00 0.00
3 A1 390 374 72.43 1.10 0.71 0.83
4 E 986 945 217.12 0.39 0.75 0.86
4 E 986 945 217.11 0.38 0.75 0.86
5 E 806 772 23.55 9.13 0.75 0.86
5 E 806 772 23.55 9.13 0.75 0.86
6 E 277 266 13.57 0.70 0.75 0.86
6 E 277 266 13.57 0.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3857.4 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 3696.6 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 mPW1PW91/cc-pVDZ
ABC
0.22468 0.22468 0.12908

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.337
H2 0.000 0.000 1.807
F3 0.000 1.514 -0.242
F4 1.311 -0.757 -0.242
F5 -1.311 -0.757 -0.242

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.46981.62071.62071.6207
H21.46982.54742.54742.5474
F31.62072.54742.62182.6218
F41.62072.54742.62182.6218
F51.62072.54742.62182.6218

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.934 H2 Si1 F4 110.934
H2 Si1 F5 110.934 F3 Si1 F4 107.969
F3 Si1 F5 107.969 F4 Si1 F5 107.969
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.974      
2 H -0.067      
3 F -0.303      
4 F -0.303      
5 F -0.303      


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 1.649 1.649
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.413 0.000 0.000
y 0.000 -29.413 0.000
z 0.000 0.000 -25.393
Traceless
 xyz
x -2.010 0.000 0.000
y 0.000 -2.010 0.000
z 0.000 0.000 4.020
Polar
3z2-r28.039
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 2.744 0.000 0.000
y 0.000 2.744 0.000
z 0.000 0.000 2.830


<r2> (average value of r2) Å2
<r2> 85.837
(<r2>)1/2 9.265