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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: BLYP/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 BLYP/6-31+G**
 hartrees
Energy at 0K-589.786258
Energy at 298.15K 
HF Energy-589.786258
Nuclear repulsion energy183.339637
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/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 2312 2300 66.39 107.50 0.13 0.23
2 A1 786 782 79.42 8.95 0.00 0.00
3 A1 388 386 62.12 1.19 0.65 0.79
4 E 930 925 272.92 0.75 0.75 0.86
4 E 930 925 272.90 0.75 0.75 0.86
5 E 799 795 10.46 8.88 0.75 0.86
5 E 799 795 10.46 8.87 0.75 0.86
6 E 276 275 12.63 0.88 0.75 0.86
6 E 276 275 12.63 0.88 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3748.5 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 3728.6 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/6-31+G**
ABC
0.22524 0.22524 0.12910

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.332
H2 0.000 0.000 1.803
F3 0.000 1.514 -0.239
F4 1.311 -0.757 -0.239
F5 -1.311 -0.757 -0.239

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.47011.61801.61801.6180
H21.47012.54162.54162.5416
F31.61802.54162.62172.6217
F41.61802.54162.62172.6217
F51.61802.54162.62172.6217

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.687 H2 Si1 F4 110.687
H2 Si1 F5 110.687 F3 Si1 F4 108.228
F3 Si1 F5 108.228 F4 Si1 F5 108.228
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.921      
2 H -0.067      
3 F -0.285      
4 F -0.285      
5 F -0.285      


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 1.620 1.620
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.362 0.000 0.000
y 0.000 -30.362 0.000
z 0.000 0.000 -26.321
Traceless
 xyz
x -2.021 0.000 0.000
y 0.000 -2.021 0.000
z 0.000 0.000 4.041
Polar
3z2-r28.082
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 3.529 0.000 0.000
y 0.000 3.529 0.000
z 0.000 0.000 3.549


<r2> (average value of r2) Å2
<r2> 86.323
(<r2>)1/2 9.291