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

using model chemistry: PBE1PBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-51.288232
Energy at 298.15K-51.290690
HF Energy-51.288232
Nuclear repulsion energy24.965084
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/STO-3G
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 3237 2855 0.25      
2 A1 2375 2095 4.30      
3 A1 1549 1366 9.26      
4 A1 1407 1241 2.42      
5 A1 835 736 6.88      
6 A2 1232 1087 0.00      
7 A2 362 319 0.00      
8 B1 2402 2119 16.71      
9 B1 888 783 18.16      
10 B2 3180 2805 19.54      
11 B2 1289 1137 154.23      
12 B2 392 346 147.40      

Unscaled Zero Point Vibrational Energy (zpe) 9572.7 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 8444.1 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 PBE1PBE/STO-3G
ABC
6.38189 0.86753 0.84022

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.718 -0.116
B2 0.000 -0.718 -0.116
H3 0.901 0.000 0.622
H4 -0.901 0.000 0.622
H5 0.000 1.874 -0.043
H6 0.000 -1.874 -0.043

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.43601.36811.36811.15782.5925
B21.43601.36811.36812.59251.1578
H31.36811.36811.80212.18282.1828
H41.36811.36811.80212.18282.1828
H51.15782.59252.18282.18283.7470
H62.59251.15782.18282.18283.7470

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 58.342 B1 B2 H4 58.342
B1 B2 H6 176.420 B1 H3 B2 63.316
B1 H4 B2 63.316 B2 B1 H3 58.342
B2 B1 H4 58.342 B2 B1 H5 176.420
H3 B1 H4 82.394 H3 B1 H5 119.351
H3 B2 H4 82.394 H3 B2 H6 119.351
H4 B1 H5 119.351 H4 B2 H6 119.351
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.032      
2 B -0.032      
3 H 0.035      
4 H 0.035      
5 H -0.004      
6 H -0.004      


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 1.182 1.182
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.700 0.000 0.000
y 0.000 -13.557 0.000
z 0.000 0.000 -13.871
Traceless
 xyz
x 1.015 0.000 0.000
y 0.000 -0.272 0.000
z 0.000 0.000 -0.743
Polar
3z2-r2-1.486
x2-y20.857
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.402 0.000 0.000
y 0.000 3.129 0.000
z 0.000 0.000 1.029


<r2> (average value of r2) Å2
<r2> 23.065
(<r2>)1/2 4.803