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

using model chemistry: PBEPBEultrafine/6-31G**

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/6-31G**
 hartrees
Energy at 0K-51.932406
Energy at 298.15K-51.935244
HF Energy-51.932406
Nuclear repulsion energy24.625405
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/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 2788 2749 0.07      
2 A1 2079 2050 18.57      
3 A1 1343 1324 2.11      
4 A1 1101 1086 1.42      
5 A1 711 701 0.97      
6 A2 1251 1234 0.00      
7 A2 655 646 0.00      
8 B1 2093 2064 59.60      
9 B1 781 771 2.04      
10 B2 2750 2712 29.53      
11 B2 1308 1290 156.08      
12 B2 508 501 27.25      

Unscaled Zero Point Vibrational Energy (zpe) 8683.0 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 8564.1 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/6-31G**
ABC
6.59156 0.83241 0.80348

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.737 -0.121
B2 0.000 -0.737 -0.121
H3 0.903 0.000 0.576
H4 -0.903 0.000 0.576
H5 0.000 1.912 0.030
H6 0.000 -1.912 0.030

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47451.35831.35831.18472.6537
B21.47451.35831.35832.65371.1847
H31.35831.35831.80592.18392.1839
H41.35831.35831.80592.18392.1839
H51.18472.65372.18392.18393.8243
H62.65371.18472.18392.18393.8243

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 57.129 B1 B2 H4 57.129
B1 B2 H6 172.646 B1 H3 B2 65.742
B1 H4 B2 65.742 B2 B1 H3 57.129
B2 B1 H4 57.129 B2 B1 H5 172.646
H3 B1 H4 83.325 H3 B1 H5 118.202
H3 B2 H4 83.325 H3 B2 H6 118.202
H4 B1 H5 118.202 H4 B2 H6 118.202
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.109      
2 B -0.109      
3 H 0.078      
4 H 0.078      
5 H 0.031      
6 H 0.031      


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 1.092 1.092
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.546 0.000 0.000
y 0.000 -13.855 0.000
z 0.000 0.000 -15.936
Traceless
 xyz
x 1.349 0.000 0.000
y 0.000 0.886 0.000
z 0.000 0.000 -2.235
Polar
3z2-r2-4.470
x2-y20.309
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.308 0.000 0.000
y 0.000 5.695 0.000
z 0.000 0.000 2.821


<r2> (average value of r2) Å2
<r2> 24.214
(<r2>)1/2 4.921