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All results from a given calculation for B2H4 (Diborane(4) D2d)

using model chemistry: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-51.983225
Energy at 298.15K-51.985567
HF Energy-51.983225
Nuclear repulsion energy22.242203
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 B1B95/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2569 2469 0.00      
2 A1 1176 1130 0.00      
3 A1 873 839 0.00      
4 B1 561 539 0.00      
5 B2 2546 2448 66.46      
6 B2 1099 1056 1.38      
7 E 2622 2520 81.63      
7 E 2622 2520 81.63      
8 E 967 930 22.92      
8 E 967 930 22.92      
9 E 357 343 1.62      
9 E 357 343 1.62      

Unscaled Zero Point Vibrational Energy (zpe) 8357.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 8033.5 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 B1B95/cc-pVDZ
ABC
3.97855 0.66326 0.66326

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.817
B2 0.000 0.000 -0.817
H3 0.000 1.025 1.461
H4 0.000 -1.025 1.461
H5 1.025 0.000 -1.461
H6 -1.025 0.000 -1.461

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63401.21051.21052.49772.4977
B21.63402.49772.49771.21051.2105
H31.21052.49772.05043.26113.2611
H41.21052.49772.05043.26113.2611
H52.49771.21053.26113.26112.0504
H62.49771.21053.26113.26112.0504

picture of Diborane(4) D2d state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H5 122.117 B1 B2 H6 122.117
B2 B1 H3 122.117 B2 B1 H4 122.117
H3 B1 H4 115.767 H5 B2 H6 115.767
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.016      
2 B 0.016      
3 H -0.008      
4 H -0.008      
5 H -0.008      
6 H -0.008      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.462 0.000 0.000
y 0.000 -14.462 0.000
z 0.000 0.000 -16.245
Traceless
 xyz
x 0.892 0.000 0.000
y 0.000 0.892 0.000
z 0.000 0.000 -1.783
Polar
3z2-r2-3.566
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.637 0.000 0.000
y 0.000 3.637 0.000
z 0.000 0.000 5.851


<r2> (average value of r2) Å2
<r2> 28.816
(<r2>)1/2 5.368