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All results from a given calculation for BH4 (borohydride)

using model chemistry: HF/3-21G*

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/3-21G*
 hartrees
Energy at 0K-26.725138
Energy at 298.15K-26.727830
HF Energy-26.725138
Nuclear repulsion energy10.333496
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/3-21G*
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 2752 2484 42.89      
2 A1 2104 1899 118.08      
3 A1 1312 1184 49.92      
4 A1 573 517 41.40      
5 A2 893 806 0.00      
6 B1 2864 2585 108.53      
7 B1 1139 1028 3.35      
8 B2 1912 1726 23.26      
9 B2 797 719 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7172.8 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 6474.2 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/3-21G*
ABC
5.78692 4.43389 3.15083

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.134
H2 0.000 0.582 -1.009
H3 0.000 -0.582 -1.009
H4 -1.052 0.000 0.673
H5 1.052 0.000 0.673

Atom - Atom Distances (Å)
  B1 H2 H3 H4 H5
B11.28251.28251.18191.1819
H21.28251.16372.06722.0672
H31.28251.16372.06722.0672
H41.18192.06722.06722.1040
H51.18192.06722.06722.1040

picture of borohydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 H3 53.961 H2 B1 H4 113.969
H2 B1 H5 113.969 H3 B1 H4 113.969
H3 B1 H5 113.969 H4 B1 H5 125.759
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.131      
2 H 0.055      
3 H 0.055      
4 H 0.011      
5 H 0.011      


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 -1.122 1.122
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.731 0.000 0.000
y 0.000 -9.872 0.000
z 0.000 0.000 -9.104
Traceless
 xyz
x -1.243 0.000 0.000
y 0.000 0.046 0.000
z 0.000 0.000 1.197
Polar
3z2-r22.394
x2-y2-0.860
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.090 0.000 0.000
y 0.000 1.916 0.000
z 0.000 0.000 3.139


<r2> (average value of r2) Å2
<r2> 12.106
(<r2>)1/2 3.479