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All results from a given calculation for SiF2 (Silicon difluoride)

using model chemistry: ROHF/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
2 1 yes C2V 3B1

State 1 (1A1)

Jump to S2C1
Energy calculated at ROHF/cc-pVDZ
 hartrees
Energy at 0K-487.895560
Energy at 298.15K-487.775905
HF Energy-487.895560
Nuclear repulsion energy98.878706
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 ROHF/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 888 764 156.43      
2 A1 355 306 26.41      
3 B2 894 770 173.72      

Unscaled Zero Point Vibrational Energy (zpe) 1068.8 cm-1
Scaled (by 0.8607) Zero Point Vibrational Energy (zpe) 919.9 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 ROHF/cc-pVDZ
ABC
0.92282 0.28858 0.21984

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.599
F2 0.000 1.240 -0.466
F3 0.000 -1.240 -0.466

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.63431.6343
F21.63432.4798
F31.63432.4798

picture of Silicon difluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 F3 98.692
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.905      
2 F -0.453      
3 F -0.453      


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 1.775 1.775
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.051 0.000 0.000
y 0.000 -25.845 0.000
z 0.000 0.000 -23.724
Traceless
 xyz
x 5.733 0.000 0.000
y 0.000 -4.457 0.000
z 0.000 0.000 -1.276
Polar
3z2-r2-2.552
x2-y26.793
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 50.887
(<r2>)1/2 7.134

State 2 (3B1)

Jump to S1C1
Energy calculated at ROHF/cc-pVDZ
 hartrees
Energy at 0K-487.809319
Energy at 298.15K-487.689586
HF Energy-487.809319
Nuclear repulsion energy97.568428
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 ROHF/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 859 740 83.46      
2 A1 279 240 26.53      
3 B2 972 837 158.94      

Unscaled Zero Point Vibrational Energy (zpe) 1055.4 cm-1
Scaled (by 0.8607) Zero Point Vibrational Energy (zpe) 908.4 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 ROHF/cc-pVDZ
ABC
1.27785 0.24102 0.20278

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

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.866      
2 F -0.433      
3 F -0.433      


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 2.309 2.309
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.340 0.000 0.000
y 0.000 -26.336 0.000
z 0.000 0.000 -20.371
Traceless
 xyz
x 1.013 0.000 0.000
y 0.000 -4.980 0.000
z 0.000 0.000 3.967
Polar
3z2-r27.934
x2-y23.995
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 53.956
(<r2>)1/2 7.345