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

using model chemistry: B3LYP/daug-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 B3LYP/daug-cc-pVDZ
 hartrees
Energy at 0K-52.046398
Energy at 298.15K-52.048819
HF Energy-52.046398
Nuclear repulsion energy22.271542
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/daug-cc-pVDZ
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 2561 2561 0.00      
2 A1 1184 1184 0.00      
3 A1 869 869 0.00      
4 B1 559 559 0.00      
5 B2 2540 2540 62.36      
6 B2 1119 1119 2.38      
7 E 2608 2608 82.86      
7 E 2608 2608 82.86      
8 E 988 988 23.45      
8 E 988 988 23.45      
9 E 387 387 4.03      
9 E 387 387 4.03      

Unscaled Zero Point Vibrational Energy (zpe) 8397.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8397.6 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 B3LYP/daug-cc-pVDZ
ABC
4.01528 0.66284 0.66284

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.818
B2 0.000 0.000 -0.818
H3 0.000 1.021 1.460
H4 0.000 -1.021 1.460
H5 1.021 0.000 -1.460
H6 -1.021 0.000 -1.460

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63641.20561.20562.49632.4963
B21.63642.49632.49631.20561.2056
H31.20562.49632.04103.25723.2572
H41.20562.49632.04103.25723.2572
H52.49631.20563.25723.25722.0410
H62.49631.20563.25723.25722.0410

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 122.167 B1 B2 H6 122.167
B2 B1 H3 122.167 B2 B1 H4 122.167
H3 B1 H4 115.667 H5 B2 H6 115.667
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -1.606      
2 B -1.606      
3 H 0.803      
4 H 0.803      
5 H 0.803      
6 H 0.803      


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 -14.824 0.000 0.000
y 0.000 -14.824 0.000
z 0.000 0.000 -16.838
Traceless
 xyz
x 1.007 0.000 0.000
y 0.000 1.007 0.000
z 0.000 0.000 -2.014
Polar
3z2-r2-4.028
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 4.280 0.000 0.000
y 0.000 4.280 0.000
z 0.000 0.000 6.182


<r2> (average value of r2) Å2
<r2> 29.065
(<r2>)1/2 5.391