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

using model chemistry: B3LYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/6-31G**
 hartrees
Energy at 0K-52.040989
Energy at 298.15K-52.043861
HF Energy-52.040989
Nuclear repulsion energy24.788620
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/6-31G**
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 2851 2739 0.13      
2 A1 2095 2013 26.55      
3 A1 1377 1323 3.31      
4 A1 1146 1102 4.12      
5 A1 740 711 0.55      
6 A2 1242 1193 0.00      
7 A2 633 608 0.00      
8 B1 2103 2021 80.81      
9 B1 810 778 2.61      
10 B2 2812 2702 36.66      
11 B2 1333 1281 188.05      
12 B2 529 508 41.04      

Unscaled Zero Point Vibrational Energy (zpe) 8835.3 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 8488.9 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/6-31G**
ABC
6.65157 0.84474 0.81483

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.732 -0.117
B2 0.000 -0.732 -0.117
H3 0.900 0.000 0.578
H4 -0.900 0.000 0.578
H5 0.000 1.899 0.007
H6 0.000 -1.899 0.007

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46331.35251.35251.17402.6336
B21.46331.35251.35252.63361.1740
H31.35251.35251.80042.17782.1778
H41.35251.35251.80042.17782.1778
H51.17402.63362.17782.17783.7980
H62.63361.17402.17782.17783.7980

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 57.251 B1 B2 H4 57.251
B1 B2 H6 173.924 B1 H3 B2 65.498
B1 H4 B2 65.498 B2 B1 H3 57.251
B2 B1 H4 57.251 B2 B1 H5 173.924
H3 B1 H4 83.457 H3 B1 H5 118.914
H3 B2 H4 83.457 H3 B2 H6 118.914
H4 B1 H5 118.914 H4 B2 H6 118.914
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.063      
2 B -0.063      
3 H 0.045      
4 H 0.045      
5 H 0.018      
6 H 0.018      


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 1.003 1.003
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.540 0.000 0.000
y 0.000 -13.980 0.000
z 0.000 0.000 -15.852
Traceless
 xyz
x 1.375 0.000 0.000
y 0.000 0.716 0.000
z 0.000 0.000 -2.092
Polar
3z2-r2-4.183
x2-y20.439
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.247 0.000 0.000
y 0.000 5.508 0.000
z 0.000 0.000 2.759


<r2> (average value of r2) Å2
<r2> 24.022
(<r2>)1/2 4.901