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

using model chemistry: M06-2X/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 M06-2X/aug-cc-pVDZ
 hartrees
Energy at 0K-50.747338
Energy at 298.15K-50.747250
HF Energy-50.747338
Nuclear repulsion energy15.299401
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 M06-2X/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 2835 2835 0.00      
2 Σg 1256 1256 0.00      
3 Σu 2795 2795 26.61      
4 Πg 534 534 0.00      
4 Πg 534 534 0.00      
5 Πu 548 548 0.55      
5 Πu 548 548 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 4525.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4525.2 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 M06-2X/aug-cc-pVDZ
B
0.83229

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/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 1.939
H4 0.000 0.000 -1.939

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.51751.18032.6978
B21.51752.69781.1803
H31.18032.69783.8781
H42.69781.18033.8781

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 M06-2X/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.557      
2 B -0.557      
3 H 0.557      
4 H 0.557      


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 -14.198 0.000 0.000
y 0.000 -14.198 0.000
z 0.000 0.000 -12.452
Traceless
 xyz
x -0.873 0.000 0.000
y 0.000 -0.873 0.000
z 0.000 0.000 1.746
Polar
3z2-r23.491
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 4.307 0.000 0.000
y 0.000 4.307 0.000
z 0.000 0.000 7.353


<r2> (average value of r2) Å2
<r2> 21.781
(<r2>)1/2 4.667