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

using model chemistry: wB97X-D/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/3-21G
 hartrees
Energy at 0K-51.703467
Energy at 298.15K-51.706210
HF Energy-51.703467
Nuclear repulsion energy 
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 wB97X-D/3-21G
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 2905 2905 0.23      
2 A1 2012 2012 26.75      
3 A1 1384 1384 4.74      
4 A1 1142 1142 17.63      
5 A1 731 731 2.35      
6 A2 1194 1194 0.00      
7 A2 571 571 0.00      
8 B1 1988 1988 84.76      
9 B1 819 819 0.41      
10 B2 2857 2857 36.44      
11 B2 1239 1239 185.49      
12 B2 424 424 103.53      

Unscaled Zero Point Vibrational Energy (zpe) 8631.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8631.6 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 wB97X-D/3-21G
ABC
6.39862 0.84003 0.80823

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.733 -0.112
B2 0.000 -0.733 -0.112
H3 0.922 0.000 0.594
H4 -0.922 0.000 0.594
H5 0.000 1.905 -0.033
H6 0.000 -1.905 -0.033

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46621.37331.37331.17412.6388
B21.46621.37331.37332.63881.1741
H31.37331.37331.84322.20682.2068
H41.37331.37331.84322.20682.2068
H51.17412.63882.20682.20683.8090
H62.63881.17412.20682.20683.8090

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 57.735 B1 B2 H4 57.735
B1 B2 H6 176.119 B1 H3 B2 64.529
B1 H4 B2 64.529 B2 B1 H3 57.735
B2 B1 H4 57.735 B2 B1 H5 176.119
H3 B1 H4 84.302 H3 B1 H5 119.854
H3 B2 H4 84.302 H3 B2 H6 119.854
H4 B1 H5 119.854 H4 B2 H6 119.854
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.101      
2 B -0.101      
3 H 0.076      
4 H 0.076      
5 H 0.025      
6 H 0.025      


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 1.155 1.155
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.365 0.000 0.000
y 0.000 -14.266 0.000
z 0.000 0.000 -16.885
Traceless
 xyz
x 1.210 0.000 0.000
y 0.000 1.359 0.000
z 0.000 0.000 -2.570
Polar
3z2-r2-5.139
x2-y2-0.100
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.246 0.000 0.000
y 0.000 5.569 0.000
z 0.000 0.000 2.625


<r2> (average value of r2) Å2
<r2> 24.639
(<r2>)1/2 4.964