return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBE1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/6-311G**
 hartrees
Energy at 0K-51.961779
Energy at 298.15K-51.964697
HF Energy-51.961779
Nuclear repulsion energy24.790587
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 PBE1PBE/6-311G**
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 2828 2714 0.02      
2 A1 2109 2023 17.77      
3 A1 1365 1310 2.84      
4 A1 1117 1072 2.76      
5 A1 731 701 4.21      
6 A2 1278 1226 0.00      
7 A2 674 647 0.00      
8 B1 2118 2032 44.35      
9 B1 792 760 1.47      
10 B2 2787 2674 30.99      
11 B2 1345 1291 188.86      
12 B2 565 542 35.85      

Unscaled Zero Point Vibrational Energy (zpe) 8855.3 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 8495.8 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 PBE1PBE/6-311G**
ABC
6.64937 0.84532 0.81533

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.731 -0.117
B2 0.000 -0.731 -0.117
H3 0.900 0.000 0.579
H4 -0.900 0.000 0.579
H5 0.000 1.900 0.005
H6 0.000 -1.900 0.005

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46191.35241.35241.17542.6339
B21.46191.35241.35242.63391.1754
H31.35241.35241.80092.17962.1796
H41.35241.35241.80092.17962.1796
H51.17542.63392.17962.17963.8002
H62.63391.17542.17962.17963.8002

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 57.283 B1 B2 H4 57.283
B1 B2 H6 174.066 B1 H3 B2 65.434
B1 H4 B2 65.434 B2 B1 H3 57.283
B2 B1 H4 57.283 B2 B1 H5 174.066
H3 B1 H4 83.494 H3 B1 H5 118.975
H3 B2 H4 83.494 H3 B2 H6 118.975
H4 B1 H5 118.975 H4 B2 H6 118.975
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.142      
2 B -0.142      
3 H 0.126      
4 H 0.126      
5 H 0.015      
6 H 0.015      


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 1.024 1.024
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.002 0.000 0.000
y 0.000 -14.038 0.000
z 0.000 0.000 -16.609
Traceless
 xyz
x 1.322 0.000 0.000
y 0.000 1.268 0.000
z 0.000 0.000 -2.589
Polar
3z2-r2-5.178
x2-y20.036
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.814 0.000 0.000
y 0.000 5.986 0.000
z 0.000 0.000 3.532


<r2> (average value of r2) Å2
<r2> 24.288
(<r2>)1/2 4.928