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All results from a given calculation for BH4 (borohydride)

using model chemistry: HF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-26.896717
Energy at 298.15K-26.899587
HF Energy-26.896717
Nuclear repulsion energy10.376897
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 HF/6-31G(2df,p)
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 2726 2468 56.29      
2 A1 2182 1976 123.56      
3 A1 1392 1260 69.98      
4 A1 965 874 15.32      
5 A2 952 862 0.00      
6 B1 2837 2569 109.19      
7 B1 1126 1019 2.46      
8 B2 2066 1871 4.75      
9 B2 815 738 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 7530.1 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 6818.5 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 HF/6-31G(2df,p)
ABC
5.89895 4.50628 3.11118

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.142
H2 0.000 0.541 -1.018
H3 0.000 -0.541 -1.018
H4 -1.061 0.000 0.663
H5 1.061 0.000 0.663

Atom - Atom Distances (Å)
  B1 H2 H3 H4 H5
B11.28021.28021.18191.1819
H21.28021.08222.06042.0604
H31.28021.08222.06042.0604
H41.18192.06042.06042.1213
H51.18192.06042.06042.1213

picture of borohydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 H3 50.007 H2 B1 H4 113.565
H2 B1 H5 113.565 H3 B1 H4 113.565
H3 B1 H5 113.565 H4 B1 H5 127.647
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.268      
2 H 0.125      
3 H 0.125      
4 H 0.009      
5 H 0.009      


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 -1.270 1.270
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.260 0.000 0.000
y 0.000 -9.508 0.000
z 0.000 0.000 -8.354
Traceless
 xyz
x -1.329 0.000 0.000
y 0.000 -0.201 0.000
z 0.000 0.000 1.530
Polar
3z2-r23.060
x2-y2-0.752
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.361 0.000 0.000
y 0.000 2.153 0.000
z 0.000 0.000 3.180


<r2> (average value of r2) Å2
<r2> 11.745
(<r2>)1/2 3.427