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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B1B95/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/daug-cc-pVTZ
 hartrees
Energy at 0K-589.920071
Energy at 298.15K 
HF Energy-589.920071
Nuclear repulsion energy187.816584
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 B1B95/daug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 ?a 845 845 80.50 8.01 0.00 0.00
2 ?a 831 831 22.04 4.11 0.75 0.86
3 ?a 830 830 22.13 4.07 0.75 0.86
4 A1 2383 2383 57.49 101.21 0.09 0.17
4 A1 409 409 67.14 0.52 0.54 0.70
5 E 987 987 248.33 0.65 0.75 0.86
5 E 987 987 248.73 0.64 0.75 0.86
6 E 290 290 11.95 0.34 0.75 0.86
6 E 290 290 12.02 0.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3926.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3926.4 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 B1B95/daug-cc-pVTZ
ABC
0.23640 0.23640 0.13584

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/daug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.326
H2 0.000 0.000 1.783
F3 0.000 1.476 -0.235
F4 1.278 -0.738 -0.235
F5 -1.278 -0.738 -0.235

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45691.57871.57871.5787
H21.45692.50012.50012.5001
F31.57872.50012.55582.5558
F41.57872.50012.55582.5558
F51.57872.50012.55582.5558

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.827 H2 Si1 F4 110.827
H2 Si1 F5 110.827 F3 Si1 F4 108.082
F3 Si1 F5 108.082 F4 Si1 F5 108.082
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.790      
2 H 0.485      
3 F -0.758      
4 F -0.758      
5 F -0.758      


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 1.427 1.427
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.381 0.000 0.000
y 0.000 -29.381 0.000
z 0.000 0.000 -25.800
Traceless
 xyz
x -1.791 0.000 0.000
y 0.000 -1.791 0.000
z 0.000 0.000 3.581
Polar
3z2-r27.163
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 3.584 0.000 0.000
y 0.000 3.585 -0.001
z 0.000 -0.001 3.653


<r2> (average value of r2) Å2
<r2> 82.554
(<r2>)1/2 9.086