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All results from a given calculation for BH4 (borohydride)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
1 2 no D2D 2B2

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-26.884221
Energy at 298.15K-26.887061
HF Energy-26.884221
Nuclear repulsion energy10.350230
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*
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 2750 2471 64.04      
2 A1 2175 1955 139.48      
3 A1 1353 1216 53.57      
4 A1 894 803 13.01      
5 A2 906 814 0.00      
6 B1 2855 2565 135.84      
7 B1 1142 1026 4.71      
8 B2 1977 1777 9.85      
9 B2 827 743 1.09      

Unscaled Zero Point Vibrational Energy (zpe) 7439.3 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 6684.2 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/6-31G*
ABC
5.75919 4.47756 3.16551

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.133
H2 0.000 0.582 -1.002
H3 0.000 -0.582 -1.002
H4 -1.055 0.000 0.670
H5 1.055 0.000 0.670

Atom - Atom Distances (Å)
  B1 H2 H3 H4 H5
B11.27571.27571.18391.1839
H21.27571.16452.06112.0611
H31.27571.16452.06112.0611
H41.18392.06112.06112.1102
H51.18392.06112.06112.1102

picture of borohydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 H3 54.310 H2 B1 H4 113.802
H2 B1 H5 113.802 H3 B1 H4 113.802
H3 B1 H5 113.802 H4 B1 H5 126.053
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.128      
2 H 0.070      
3 H 0.070      
4 H -0.005      
5 H -0.005      


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 -1.152 1.152
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.406 0.000 0.000
y 0.000 -9.473 0.000
z 0.000 0.000 -8.748
Traceless
 xyz
x -1.295 0.000 0.000
y 0.000 0.104 0.000
z 0.000 0.000 1.192
Polar
3z2-r22.383
x2-y2-0.933
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.241 0.000 0.000
y 0.000 1.994 0.000
z 0.000 0.000 3.153


<r2> (average value of r2) Å2
<r2> 11.859
(<r2>)1/2 3.444

Conformer 2 (D2D)

Jump to S1C1
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-26.865975
Energy at 298.15K 
HF Energy-26.865975
Nuclear repulsion energy10.285599
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*
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 2399 2156 0.00      
2 A1 1221 1097 0.00      
3 B1 1261 1133 0.00      
4 B2 2301 2068 5.69      
5 B2 995 894 14.83      
6 E 2429 2183 12.03      
6 E 2429 2183 12.03      
7 E 1005i 903i 579.50      
7 E 1005i 903i 579.50      

Unscaled Zero Point Vibrational Energy (zpe) 5512.7 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 4953.1 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*
ABC
4.99024 4.99024 3.20016

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G*

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.000
H2 0.000 1.143 0.430
H3 0.000 -1.143 0.430
H4 -1.143 0.000 -0.430
H5 1.143 0.000 -0.430

Atom - Atom Distances (Å)
  B1 H2 H3 H4 H5
B11.22121.22121.22121.2212
H21.22122.28621.83081.8308
H31.22122.28621.83081.8308
H41.22121.83081.83082.2862
H51.22121.83081.83082.2862

picture of borohydride state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 H3 138.800 H2 B1 H4 97.111
H2 B1 H5 97.111 H3 B1 H4 97.111
H3 B1 H5 97.111 H4 B1 H5 138.800
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.282      
2 H 0.070      
3 H 0.070      
4 H 0.070      
5 H 0.070      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.486 0.000 0.000
y 0.000 -9.486 0.000
z 0.000 0.000 -9.161
Traceless
 xyz
x -0.162 0.000 0.000
y 0.000 -0.162 0.000
z 0.000 0.000 0.325
Polar
3z2-r20.649
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 3.647 0.000 0.000
y 0.000 3.647 0.000
z 0.000 0.000 2.027


<r2> (average value of r2) Å2
<r2> 11.822
(<r2>)1/2 3.438