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

using model chemistry: B3LYP/TZVP

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/TZVP
 hartrees
Energy at 0K-52.062655
Energy at 298.15K-52.065087
HF Energy-52.062655
Nuclear repulsion energy22.399129
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/TZVP
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 2572 2483 0.00      
2 A1 1199 1158 0.00      
3 A1 871 841 0.00      
4 B1 563 543 0.00      
5 B2 2552 2464 62.49      
6 B2 1136 1097 1.83      
7 E 2616 2526 80.49      
7 E 2616 2526 80.49      
8 E 992 958 26.71      
8 E 992 958 26.71      
9 E 392 378 2.91      
9 E 392 378 2.91      

Unscaled Zero Point Vibrational Energy (zpe) 8446.5 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 8154.2 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/TZVP
ABC
4.06816 0.66976 0.66976

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.814
B2 0.000 0.000 -0.814
H3 0.000 1.014 1.452
H4 0.000 -1.014 1.452
H5 1.014 0.000 -1.452
H6 -1.014 0.000 -1.452

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.62871.19761.19762.48252.4825
B21.62872.48252.48251.19761.1976
H31.19762.48252.02773.23823.2382
H41.19762.48252.02773.23823.2382
H52.48251.19763.23823.23822.0277
H62.48251.19763.23823.23822.0277

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 122.156 B1 B2 H6 122.156
B2 B1 H3 122.156 B2 B1 H4 122.156
H3 B1 H4 115.688 H5 B2 H6 115.688
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.023      
2 B 0.023      
3 H -0.012      
4 H -0.012      
5 H -0.012      
6 H -0.012      


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 -14.720 0.000 0.000
y 0.000 -14.720 0.000
z 0.000 0.000 -16.818
Traceless
 xyz
x 1.049 0.000 0.000
y 0.000 1.049 0.000
z 0.000 0.000 -2.097
Polar
3z2-r2-4.195
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 3.607 0.000 0.000
y 0.000 3.607 0.000
z 0.000 0.000 5.896


<r2> (average value of r2) Å2
<r2> 28.804
(<r2>)1/2 5.367