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

using model chemistry: B3PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-52.015427
Energy at 298.15K-52.018311
HF Energy-52.015427
Nuclear repulsion energy24.599057
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 B3PW91/aug-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 2827 2727 0.14      
2 A1 2085 2011 19.38      
3 A1 1360 1312 3.05      
4 A1 1106 1066 1.88      
5 A1 724 699 5.43      
6 A2 1247 1203 0.00      
7 A2 649 626 0.00      
8 B1 2100 2026 44.03      
9 B1 788 760 0.79      
10 B2 2784 2686 32.99      
11 B2 1321 1274 188.23      
12 B2 540 521 33.60      

Unscaled Zero Point Vibrational Energy (zpe) 8764.6 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 8454.4 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 B3PW91/aug-cc-pVDZ
ABC
6.55029 0.83149 0.80257

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.737 -0.118
B2 0.000 -0.737 -0.118
H3 0.905 0.000 0.586
H4 -0.905 0.000 0.586
H5 0.000 1.913 0.001
H6 0.000 -1.913 0.001

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47491.36341.36341.18172.6533
B21.47491.36341.36342.65331.1817
H31.36341.36341.81072.19592.1959
H41.36341.36341.81072.19592.1959
H51.18172.65332.19592.19593.8264
H62.65331.18172.19592.19593.8264

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 57.256 B1 B2 H4 57.256
B1 B2 H6 174.222 B1 H3 B2 65.489
B1 H4 B2 65.489 B2 B1 H3 57.256
B2 B1 H4 57.256 B2 B1 H5 174.222
H3 B1 H4 83.216 H3 B1 H5 119.089
H3 B2 H4 83.216 H3 B2 H6 119.089
H4 B1 H5 119.089 H4 B2 H6 119.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.964      
2 B -0.964      
3 H 0.533      
4 H 0.533      
5 H 0.432      
6 H 0.432      


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 0.820 0.820
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.089 0.000 0.000
y 0.000 -14.068 0.000
z 0.000 0.000 -16.595
Traceless
 xyz
x 1.243 0.000 0.000
y 0.000 1.274 0.000
z 0.000 0.000 -2.516
Polar
3z2-r2-5.033
x2-y2-0.021
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.372 0.000 0.000
y 0.000 6.203 0.000
z 0.000 0.000 4.755


<r2> (average value of r2) Å2
<r2> 24.541
(<r2>)1/2 4.954