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All results from a given calculation for HBHHBH (Diborane(4) C2V)

using model chemistry: PBEPBEultrafine/aug-cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/aug-cc-pCVTZ
 hartrees
Energy at 0K-51.954127
Energy at 298.15K 
HF Energy-51.954127
Nuclear repulsion energy24.713235
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 PBEPBEultrafine/aug-cc-pCVTZ
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 2764 2764 0.04      
2 A1 2073 2073 12.38      
3 A1 1328 1328 2.75      
4 A1 1077 1077 0.80      
5 A1 703 703 5.49      
6 A2 1258 1258 0.00      
7 A2 668 668 0.00      
8 B1 2076 2076 31.17      
9 B1 767 767 1.00      
10 B2 2726 2726 28.12      
11 B2 1315 1315 156.14      
12 B2 535 535 23.13      

Unscaled Zero Point Vibrational Energy (zpe) 8644.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8644.0 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 PBEPBEultrafine/aug-cc-pCVTZ
ABC
6.64183 0.83903 0.80915

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pCVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.734 -0.118
B2 0.000 -0.734 -0.118
H3 0.902 0.000 0.575
H4 -0.902 0.000 0.575
H5 0.000 1.907 0.014
H6 0.000 -1.907 0.014

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46781.35391.35391.18092.6447
B21.46781.35391.35392.64471.1809
H31.35391.35391.80412.18342.1834
H41.35391.35391.80412.18342.1834
H51.18092.64472.18342.18343.8149
H62.64471.18092.18342.18343.8149

picture of Diborane(4) C2V state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H3 57.176 B1 B2 H4 57.176
B1 B2 H6 173.580 B1 H3 B2 65.649
B1 H4 B2 65.649 B2 B1 H3 57.176
B2 B1 H4 57.176 B2 B1 H5 173.580
H3 B1 H4 83.554 H3 B1 H5 118.777
H3 B2 H4 83.554 H3 B2 H6 118.777
H4 B1 H5 118.777 H4 B2 H6 118.777
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.273      
2 B -0.273      
3 H 0.248      
4 H 0.248      
5 H 0.024      
6 H 0.024      


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 0.845 0.845
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.116 0.000 0.000
y 0.000 -14.240 0.000
z 0.000 0.000 -16.662
Traceless
 xyz
x 1.335 0.000 0.000
y 0.000 1.149 0.000
z 0.000 0.000 -2.485
Polar
3z2-r2-4.969
x2-y20.124
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.434 0.000 0.000
y 0.000 6.319 0.000
z 0.000 0.000 4.882


<r2> (average value of r2) Å2
<r2> 24.465
(<r2>)1/2 4.946