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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-27.128682
Energy at 298.15K-27.131415
HF Energy-27.128682
Nuclear repulsion energy10.337242
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 2679 2540 42.07      
2 A1 2161 2050 87.74      
3 A1 1316 1248 38.00      
4 A1 960 911 2.85      
5 A2 669 634 0.00      
6 B1 2795 2650 87.24      
7 B1 1074 1018 0.39      
8 B2 2047 1941 2.59      
9 B2 753 714 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 7226.5 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 6852.9 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 mPW1PW91/6-31G*
ABC
5.75477 4.50849 3.11640

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 0.140
H2 0.000 0.559 -1.011
H3 0.000 -0.559 -1.011
H4 -1.068 0.000 0.660
H5 1.068 0.000 0.660

Atom - Atom Distances (Å)
  B1 H2 H3 H4 H5
B11.27991.27991.18801.1880
H21.27991.11772.06082.0608
H31.27991.11772.06082.0608
H41.18802.06082.06082.1363
H51.18802.06082.06082.1363

picture of borohydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 H3 51.781 H2 B1 H4 113.187
H2 B1 H5 113.187 H3 B1 H4 113.187
H3 B1 H5 113.187 H4 B1 H5 128.089
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 -0.293      
2 H 0.096      
3 H 0.096      
4 H 0.050      
5 H 0.050      


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 -1.284 1.284
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.974 0.000 0.000
y 0.000 -9.499 0.000
z 0.000 0.000 -8.252
Traceless
 xyz
x -1.099 0.000 0.000
y 0.000 -0.385 0.000
z 0.000 0.000 1.485
Polar
3z2-r22.970
x2-y2-0.476
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.281 0.000 0.000
y 0.000 1.930 0.000
z 0.000 0.000 3.182


<r2> (average value of r2) Å2
<r2> 11.694
(<r2>)1/2 3.420