return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: B2PLYP/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 B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-391.061974
Energy at 298.15K 
HF Energy-390.938487
Nuclear repulsion energy62.811409
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 B2PLYP/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 A1 2283 2190 31.06 260.14 0.03 0.07
2 A1 1007 966 201.71 3.73 0.74 0.85
3 A1 871 836 64.00 4.57 0.35 0.52
4 E 2289 2196 144.28 54.97 0.75 0.86
4 E 2289 2196 144.28 54.97 0.75 0.86
5 E 978 938 93.22 10.36 0.75 0.86
5 E 978 938 93.22 10.36 0.75 0.86
6 E 733 703 57.75 8.76 0.75 0.86
6 E 733 703 57.75 8.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6079.9 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 5833.1 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 B2PLYP/cc-pVTZ
ABC
2.84186 0.46999 0.46999

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.504
F2 0.000 0.000 -1.107
H3 0.000 1.401 0.968
H4 -1.213 -0.700 0.968
H5 1.213 -0.700 0.968

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.61111.47541.47541.4754
F21.61112.50312.50312.5031
H31.47542.50312.42612.4261
H41.47542.50312.42612.4261
H51.47542.50312.42612.4261

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 108.307 F2 Si1 H4 108.307
F2 Si1 H5 108.307 H3 Si1 H4 110.610
H3 Si1 H5 110.610 H4 Si1 H5 110.610
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.448      
2 F -0.303      
3 H -0.048      
4 H -0.048      
5 H -0.048      


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 1.281 1.281
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.904 0.000 0.000
y 0.000 -19.904 0.000
z 0.000 0.000 -20.934
Traceless
 xyz
x 0.515 0.000 0.000
y 0.000 0.515 0.000
z 0.000 0.000 -1.030
Polar
3z2-r2-2.060
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 3.958 0.000 0.000
y 0.000 3.958 0.000
z 0.000 0.000 3.480


<r2> (average value of r2) Å2
<r2> 35.932
(<r2>)1/2 5.994