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: QCISD(T)/aug-cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD(T)/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-390.659577
Energy at 298.15K 
HF Energy-390.233117
Nuclear repulsion energy63.003555
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 QCISD(T)/aug-cc-pV(T+d)Z
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 2270 2270        
2 A1 999 999        
3 A1 871 871        
4 E 2274 2274        
4 E 2274 2274        
5 E 975 975        
5 E 975 975        
6 E 733 733        
6 E 733 733        

Unscaled Zero Point Vibrational Energy (zpe) 6051.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6051.3 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 QCISD(T)/aug-cc-pV(T+d)Z
ABC
2.84244 0.47356 0.47356

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pV(T+d)Z

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.502
F2 0.000 0.000 -1.102
H3 0.000 1.401 0.966
H4 -1.213 -0.700 0.966
H5 1.213 -0.700 0.966

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.60401.47551.47551.4755
F21.60402.49802.49802.4980
H31.47552.49802.42582.4258
H41.47552.49802.42582.4258
H51.47552.49802.42582.4258

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 108.345 F2 Si1 H4 108.345
F2 Si1 H5 108.345 H3 Si1 H4 110.573
H3 Si1 H5 110.573 H4 Si1 H5 110.573
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability