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

using model chemistry: B3LYPultrafine/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B3LYPultrafine/Def2TZVPP
 hartrees
Energy at 0K-52.065193
Energy at 298.15K-52.067631
HF Energy-52.065193
Nuclear repulsion energy22.428422
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 B3LYPultrafine/Def2TZVPP
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 2574 2574 0.00      
2 A1 1200 1200 0.00      
3 A1 872 872 0.00      
4 B1 567 567 0.00      
5 B2 2554 2554 61.05      
6 B2 1138 1138 1.99      
7 E 2617 2617 80.91      
7 E 2617 2617 80.91      
8 E 996 996 25.61      
8 E 996 996 25.61      
9 E 395 395 3.65      
9 E 395 395 3.65      

Unscaled Zero Point Vibrational Energy (zpe) 8460.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8460.4 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 B3LYPultrafine/Def2TZVPP
ABC
4.08072 0.67130 0.67130

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/Def2TZVPP

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 1.012 1.450
H4 0.000 -1.012 1.450
H5 1.012 0.000 -1.450
H6 -1.012 0.000 -1.450

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.62711.19561.19562.47942.4794
B21.62712.47942.47941.19561.1956
H31.19562.47942.02463.23373.2337
H41.19562.47942.02463.23373.2337
H52.47941.19563.23373.23372.0246
H62.47941.19563.23373.23372.0246

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 122.150 B1 B2 H6 122.150
B2 B1 H3 122.150 B2 B1 H4 122.150
H3 B1 H4 115.700 H5 B2 H6 115.700
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.097      
2 B -0.097      
3 H 0.049      
4 H 0.049      
5 H 0.049      
6 H 0.049      


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 -14.695 0.000 0.000
y 0.000 -14.695 0.000
z 0.000 0.000 -16.753
Traceless
 xyz
x 1.029 0.000 0.000
y 0.000 1.029 0.000
z 0.000 0.000 -2.058
Polar
3z2-r2-4.116
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 3.891 0.000 0.000
y 0.000 3.891 0.000
z 0.000 0.000 5.941


<r2> (average value of r2) Å2
<r2> 28.732
(<r2>)1/2 5.360