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

using model chemistry: B3PW91/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-52.032729
Energy at 298.15K-52.035648
HF Energy-52.032729
Nuclear repulsion energy24.847475
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/cc-pVTZ
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 2824 2715 0.03      
2 A1 2111 2030 14.20      
3 A1 1360 1308 2.55      
4 A1 1113 1071 1.67      
5 A1 729 701 4.23      
6 A2 1280 1231 0.00      
7 A2 676 650 0.00      
8 B1 2116 2035 41.04      
9 B1 791 761 1.25      
10 B2 2783 2677 32.59      
11 B2 1351 1300 183.58      
12 B2 562 541 30.54      

Unscaled Zero Point Vibrational Energy (zpe) 8848.6 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 8508.8 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/cc-pVTZ
ABC
6.70741 0.84871 0.81802

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.730 -0.115
B2 0.000 -0.730 -0.115
H3 0.899 0.000 0.574
H4 -0.899 0.000 0.574
H5 0.000 1.897 0.003
H6 0.000 -1.897 0.003

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45931.34751.34751.17372.6297
B21.45931.34751.34752.62971.1737
H31.34751.34751.79812.17582.1758
H41.34751.34751.79812.17582.1758
H51.17372.62972.17582.17583.7947
H62.62971.17372.17582.17583.7947

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 57.215 B1 B2 H4 57.215
B1 B2 H6 174.209 B1 H3 B2 65.570
B1 H4 B2 65.570 B2 B1 H3 57.215
B2 B1 H4 57.215 B2 B1 H5 174.209
H3 B1 H4 83.704 H3 B1 H5 119.151
H3 B2 H4 83.704 H3 B2 H6 119.151
H4 B1 H5 119.151 H4 B2 H6 119.151
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.193      
2 B -0.193      
3 H 0.155      
4 H 0.155      
5 H 0.039      
6 H 0.039      


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 0.883 0.883
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.930 0.000 0.000
y 0.000 -14.040 0.000
z 0.000 0.000 -16.464
Traceless
 xyz
x 1.322 0.000 0.000
y 0.000 1.157 0.000
z 0.000 0.000 -2.479
Polar
3z2-r2-4.958
x2-y20.109
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.022 0.000 0.000
y 0.000 6.029 0.000
z 0.000 0.000 3.981


<r2> (average value of r2) Å2
<r2> 24.183
(<r2>)1/2 4.918