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 SiHF3 (trifluorosilane)

using model chemistry: CCSD=FULL/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 CCSD=FULL/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-589.246509
Energy at 298.15K 
HF Energy-588.192849
Nuclear repulsion energy189.457691
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 CCSD=FULL/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 2402 2402 63.01      
2 A1 873 873 82.61      
3 A1 423 423 72.48      
4 E 1020 1020 260.76      
4 E 1020 1020 260.76      
5 E 858 858 25.13      
5 E 858 858 25.13      
6 E 307 307 12.91      
6 E 307 307 12.91      

Unscaled Zero Point Vibrational Energy (zpe) 4033.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4033.6 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 CCSD=FULL/aug-cc-pV(T+d)Z
ABC
0.24056 0.24056 0.13807

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.321
H2 0.000 0.000 1.768
F3 0.000 1.464 -0.232
F4 1.268 -0.732 -0.232
F5 -1.268 -0.732 -0.232

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.44751.56451.56451.5645
H21.44752.47862.47862.4786
F31.56452.47862.53512.5351
F41.56452.47862.53512.5351
F51.56452.47862.53512.5351

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.691 H2 Si1 F4 110.691
H2 Si1 F5 110.691 F3 Si1 F4 108.225
F3 Si1 F5 108.225 F4 Si1 F5 108.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability