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All results from a given calculation for HBBH (Diborane(2))

using model chemistry: B3LYPultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3ΣG
Energy calculated at B3LYPultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-50.775505
Energy at 298.15K-50.775554
HF Energy-50.775505
Nuclear repulsion energy15.292265
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 B3LYPultrafine/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 2829 2745 0.00      
2 Σg 1263 1226 0.00      
3 Σu 2785 2703 25.25      
4 Πg 577 560 0.00      
4 Πg 577 560 0.00      
5 Πu 613 595 0.07      
5 Πu 613 595 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 4628.3 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 4491.3 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 B3LYPultrafine/aug-cc-pVDZ
B
0.83139

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVDZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.759
B2 0.000 0.000 -0.759
H3 0.000 0.000 1.940
H4 0.000 0.000 -1.940

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.51851.18042.6989
B21.51852.69891.1804
H31.18042.69893.8793
H42.69891.18043.8793

picture of Diborane(2) state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H4 180.000 B2 B1 H3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.702      
2 B -0.702      
3 H 0.702      
4 H 0.702      


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 -14.194 0.000 0.000
y 0.000 -14.194 0.000
z 0.000 0.000 -12.683
Traceless
 xyz
x -0.755 0.000 0.000
y 0.000 -0.755 0.000
z 0.000 0.000 1.510
Polar
3z2-r23.021
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 4.360 0.000 0.000
y 0.000 4.360 0.000
z 0.000 0.000 7.385


<r2> (average value of r2) Å2
<r2> 21.840
(<r2>)1/2 4.673