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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B2PLYP/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 B2PLYP/cc-pVDZ
 hartrees
Energy at 0K-589.463494
Energy at 298.15K 
HF Energy-589.251172
Nuclear repulsion energy182.814547
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-pVDZ
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 2379 2279 61.56 85.15 0.17 0.29
2 A1 823 788 72.70 5.11 0.00 0.00
3 A1 394 377 74.49 1.17 0.70 0.83
4 E 985 944 226.76 0.41 0.75 0.86
4 E 985 944 226.76 0.41 0.75 0.86
5 E 821 787 24.23 9.48 0.75 0.86
5 E 821 787 24.23 9.48 0.75 0.86
6 E 280 268 14.02 0.76 0.75 0.86
6 E 280 268 14.02 0.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3884.6 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 3720.3 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-pVDZ
ABC
0.22393 0.22393 0.12848

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.336
H2 0.000 0.000 1.801
F3 0.000 1.517 -0.241
F4 1.314 -0.759 -0.241
F5 -1.314 -0.759 -0.241

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.46431.62351.62351.6235
H21.46432.54392.54392.5439
F31.62352.54392.62802.6280
F41.62352.54392.62802.6280
F51.62352.54392.62802.6280

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.841 H2 Si1 F4 110.841
H2 Si1 F5 110.841 F3 Si1 F4 108.067
F3 Si1 F5 108.067 F4 Si1 F5 108.067
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.042      
2 H -0.097      
3 F -0.315      
4 F -0.315      
5 F -0.315      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.675 0.000 0.000
y 0.000 -29.675 0.000
z 0.000 0.000 -25.723
Traceless
 xyz
x -1.976 0.000 0.000
y 0.000 -1.976 0.000
z 0.000 0.000 3.953
Polar
3z2-r27.905
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 2.733 0.000 0.000
y 0.000 2.732 0.000
z 0.000 0.000 2.794


<r2> (average value of r2) Å2
<r2> 86.270
(<r2>)1/2 9.288