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

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-51.993024
Energy at 298.15K-51.995806
HF Energy-51.993024
Nuclear repulsion energy24.622786
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 BLYP/6-31+G**
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 2788 2773 0.02      
2 A1 2032 2021 33.28      
3 A1 1337 1330 2.43      
4 A1 1102 1096 1.19      
5 A1 707 703 5.52      
6 A2 1199 1193 0.00      
7 A2 604 601 0.00      
8 B1 2038 2028 67.43      
9 B1 784 780 2.02      
10 B2 2752 2737 42.12      
11 B2 1281 1275 171.38      
12 B2 478 476 40.87      

Unscaled Zero Point Vibrational Energy (zpe) 8551.4 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 8506.1 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 BLYP/6-31+G**
ABC
6.56390 0.83354 0.80331

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.737 -0.117
B2 0.000 -0.737 -0.117
H3 0.909 0.000 0.579
H4 -0.909 0.000 0.579
H5 0.000 1.911 0.006
H6 0.000 -1.911 0.006

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47421.36171.36171.18002.6506
B21.47421.36171.36172.65061.1800
H31.36171.36171.81762.19212.1921
H41.36171.36171.81762.19212.1921
H51.18002.65062.19212.19213.8213
H62.65061.18002.19212.19213.8213

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 57.228 B1 B2 H4 57.228
B1 B2 H6 174.010 B1 H3 B2 65.543
B1 H4 B2 65.543 B2 B1 H3 57.228
B2 B1 H4 57.228 B2 B1 H5 174.010
H3 B1 H4 83.731 H3 B1 H5 119.010
H3 B2 H4 83.731 H3 B2 H6 119.010
H4 B1 H5 119.010 H4 B2 H6 119.010
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.055      
2 B -0.055      
3 H 0.055      
4 H 0.055      
5 H -0.001      
6 H -0.001      


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 0.946 0.946
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.136 0.000 0.000
y 0.000 -14.615 0.000
z 0.000 0.000 -16.927
Traceless
 xyz
x 1.635 0.000 0.000
y 0.000 0.916 0.000
z 0.000 0.000 -2.551
Polar
3z2-r2-5.103
x2-y20.479
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.639 0.000 0.000
y 0.000 6.389 0.000
z 0.000 0.000 4.120


<r2> (average value of r2) Å2
<r2> 24.704
(<r2>)1/2 4.970