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All results from a given calculation for SiH3Br (bromosilane)

using model chemistry: M06-2X/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at M06-2X/TZVP
 hartrees
Energy at 0K-2865.494828
Energy at 298.15K-2865.500914
HF Energy-2865.494828
Nuclear repulsion energy149.637755
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 M06-2X/TZVP
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 2271 2149 57.26      
2 A1 933 883 355.68      
3 A1 425 402 50.48      
4 E 2286 2163 84.48      
4 E 2286 2163 85.08      
5 E 963 911 60.63      
5 E 963 911 60.49      
6 E 621 588 17.83      
6 E 621 588 18.47      

Unscaled Zero Point Vibrational Energy (zpe) 5684.8 cm-1
Scaled (by 0.9462) Zero Point Vibrational Energy (zpe) 5378.9 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 M06-2X/TZVP
ABC
2.82749 0.14060 0.14060

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 -1.483
Br2 0.000 0.000 0.759
H3 0.000 1.404 -1.936
H4 1.216 -0.702 -1.936
H5 -1.216 -0.702 -1.936

Atom - Atom Distances (Å)
  Si1 Br2 H3 H4 H5
Si12.24231.47561.47561.4756
Br22.24233.03933.03933.0393
H31.47563.03932.43222.4322
H41.47563.03932.43222.4322
H51.47563.03932.43222.4322

picture of bromosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 Si1 H3 107.885 Br2 Si1 H4 107.885
Br2 Si1 H5 107.885 H3 Si1 H4 111.010
H3 Si1 H5 111.010 H4 Si1 H5 111.010
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.453      
2 Br -0.269      
3 H -0.061      
4 H -0.061      
5 H -0.061      


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 -1.865 1.865
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.891 0.000 0.000
y 0.000 -33.891 0.000
z 0.000 0.000 -30.900
Traceless
 xyz
x -1.495 0.000 0.000
y 0.000 -1.495 0.000
z 0.000 0.000 2.990
Polar
3z2-r25.980
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 5.048 0.000 0.000
y 0.000 5.045 -0.002
z 0.000 -0.002 7.605


<r2> (average value of r2) Å2
<r2> 88.674
(<r2>)1/2 9.417