return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for BH4 (borohydride)

using model chemistry: ROMP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
Energy calculated at ROMP2/6-311G*
 hartrees
Energy at 0K-26.984499
Energy at 298.15K-26.987272
HF Energy-26.887859
Nuclear repulsion energy10.334120
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 ROMP2/6-311G*
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 2664 2664        
2 A1 2171 2171        
3 A1 1291 1291        
4 A1 846 846        
5 A2 820 820        
6 B1 2787 2787        
7 B1 1075 1075        
8 B2 2023 2023        
9 B2 760 760        

Unscaled Zero Point Vibrational Energy (zpe) 7218.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7218.9 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 ROMP2/6-311G*
ABC
5.77850 4.50049 3.10031

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.144
H2 0.000 0.551 -1.017
H3 0.000 -0.551 -1.017
H4 -1.069 0.000 0.656
H5 1.069 0.000 0.656

Atom - Atom Distances (Å)
  B1 H2 H3 H4 H5
B11.28541.28541.18561.1856
H21.28541.10282.06102.0610
H31.28541.10282.06102.0610
H41.18562.06102.06102.1385
H51.18562.06102.06102.1385

picture of borohydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 H3 50.802 H2 B1 H4 112.972
H2 B1 H5 112.972 H3 B1 H4 112.972
H3 B1 H5 112.972 H4 B1 H5 128.804
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.419      
2 H 0.134      
3 H 0.134      
4 H 0.075      
5 H 0.075      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 12.026
(<r2>)1/2 3.468