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

using model chemistry: BLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/TZVP
 hartrees
Energy at 0K-52.007111
Energy at 298.15K-52.009946
HF Energy-52.007111
Nuclear repulsion energy24.713369
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 BLYP/TZVP
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 2784 2777 0.04      
2 A1 2031 2026 25.91      
3 A1 1335 1332 2.20      
4 A1 1097 1094 0.29      
5 A1 712 710 4.50      
6 A2 1204 1201 0.00      
7 A2 628 627 0.00      
8 B1 2031 2026 50.89      
9 B1 782 780 1.88      
10 B2 2747 2740 35.34      
11 B2 1285 1282 166.48      
12 B2 516 515 38.98      

Unscaled Zero Point Vibrational Energy (zpe) 8575.8 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 8554.3 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 BLYP/TZVP
ABC
6.59899 0.84040 0.80974

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.734 -0.116
B2 0.000 -0.734 -0.116
H3 0.907 0.000 0.579
H4 -0.907 0.000 0.579
H5 0.000 1.904 0.001
H6 0.000 -1.904 0.001

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46751.35761.35761.17612.6403
B21.46751.35761.35762.64031.1761
H31.35761.35761.81342.18662.1866
H41.35761.35761.81342.18662.1866
H51.17612.64032.18662.18663.8081
H62.64031.17612.18662.18663.8081

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 57.284 B1 B2 H4 57.284
B1 B2 H6 174.297 B1 H3 B2 65.431
B1 H4 B2 65.431 B2 B1 H3 57.284
B2 B1 H4 57.284 B2 B1 H5 174.297
H3 B1 H4 83.806 H3 B1 H5 119.140
H3 B2 H4 83.806 H3 B2 H6 119.140
H4 B1 H5 119.140 H4 B2 H6 119.140
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.050      
2 B -0.050      
3 H 0.072      
4 H 0.072      
5 H -0.023      
6 H -0.023      


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 0.929 0.929
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.126 0.000 0.000
y 0.000 -14.615 0.000
z 0.000 0.000 -16.860
Traceless
 xyz
x 1.612 0.000 0.000
y 0.000 0.877 0.000
z 0.000 0.000 -2.489
Polar
3z2-r2-4.978
x2-y20.490
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.812 0.000 0.000
y 0.000 6.295 0.000
z 0.000 0.000 4.176


<r2> (average value of r2) Å2
<r2> 24.577
(<r2>)1/2 4.957