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All results from a given calculation for BH4 (borohydride)

using model chemistry: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-27.117702
Energy at 298.15K-27.120403
HF Energy-27.117702
Nuclear repulsion energy10.316897
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 mPW1PW91/6-31G
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 2680 2536 40.38      
2 A1 2113 2001 91.01      
3 A1 1280 1212 31.31      
4 A1 875 829 6.57      
5 A2 634 600 0.00      
6 B1 2799 2649 97.02      
7 B1 1083 1025 0.19      
8 B2 1981 1875 2.04      
9 B2 760 719 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 7102.4 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 6723.1 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 mPW1PW91/6-31G
ABC
5.77172 4.44790 3.11506

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.139
H2 0.000 0.568 -1.015
H3 0.000 -0.568 -1.015
H4 -1.061 0.000 0.667
H5 1.061 0.000 0.667

Atom - Atom Distances (Å)
  B1 H2 H3 H4 H5
B11.28621.28621.18541.1854
H21.28621.13532.06832.0683
H31.28621.13532.06832.0683
H41.18542.06832.06832.1230
H51.18542.06832.06832.1230

picture of borohydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 H3 52.380 H2 B1 H4 113.545
H2 B1 H5 113.545 H3 B1 H4 113.545
H3 B1 H5 113.545 H4 B1 H5 127.131
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.190      
2 H 0.063      
3 H 0.063      
4 H 0.032      
5 H 0.032      


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 -1.258 1.258
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.036 0.000 0.000
y 0.000 -9.578 0.000
z 0.000 0.000 -8.450
Traceless
 xyz
x -1.023 0.000 0.000
y 0.000 -0.334 0.000
z 0.000 0.000 1.357
Polar
3z2-r22.714
x2-y2-0.459
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.239 0.000 0.000
y 0.000 1.897 0.000
z 0.000 0.000 3.250


<r2> (average value of r2) Å2
<r2> 11.788
(<r2>)1/2 3.433