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

using model chemistry: B3LYP/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/cc-pVQZ
 hartrees
Energy at 0K-52.065732
Energy at 298.15K-52.068644
HF Energy-52.065732
Nuclear repulsion energy24.920371
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 B3LYP/cc-pVQZ
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 2832 2744 0.12      
2 A1 2094 2029 16.81      
3 A1 1363 1321 3.25      
4 A1 1122 1087 1.88      
5 A1 734 711 4.35      
6 A2 1261 1222 0.00      
7 A2 660 640 0.00      
8 B1 2093 2028 45.27      
9 B1 798 773 1.54      
10 B2 2794 2706 35.14      
11 B2 1351 1309 187.76      
12 B2 562 544 35.00      

Unscaled Zero Point Vibrational Energy (zpe) 8831.7 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 8556.2 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 B3LYP/cc-pVQZ
ABC
6.74125 0.85417 0.82259

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.727 -0.113
B2 0.000 -0.727 -0.113
H3 0.899 0.000 0.572
H4 -0.899 0.000 0.572
H5 0.000 1.891 -0.006
H6 0.000 -1.891 -0.006

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45501.34421.34421.16892.6212
B21.45501.34421.34422.62121.1689
H31.34421.34421.79812.17262.1726
H41.34421.34421.79812.17262.1726
H51.16892.62122.17262.17263.7830
H62.62121.16892.17262.17263.7830

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 57.236 B1 B2 H4 57.236
B1 B2 H6 174.737 B1 H3 B2 65.529
B1 H4 B2 65.529 B2 B1 H3 57.236
B2 B1 H4 57.236 B2 B1 H5 174.737
H3 B1 H4 83.951 H3 B1 H5 119.482
H3 B2 H4 83.951 H3 B2 H6 119.482
H4 B1 H5 119.482 H4 B2 H6 119.482
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.087      
2 B 0.087      
3 H -0.020      
4 H -0.020      
5 H -0.066      
6 H -0.066      


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 0.820 0.820
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.051 0.000 0.000
y 0.000 -14.330 0.000
z 0.000 0.000 -16.589
Traceless
 xyz
x 1.409 0.000 0.000
y 0.000 0.990 0.000
z 0.000 0.000 -2.399
Polar
3z2-r2-4.798
x2-y20.279
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.168 0.000 0.000
y 0.000 6.055 0.000
z 0.000 0.000 4.400


<r2> (average value of r2) Å2
<r2> 24.209
(<r2>)1/2 4.920