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

using model chemistry: HF/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 HF/aug-cc-pVDZ
 hartrees
Energy at 0K-51.609655
Energy at 298.15K-51.612562
HF Energy-51.609655
Nuclear repulsion energy24.625841
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 HF/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 2915 2654 0.33      
2 A1 2117 1928 44.42      
3 A1 1409 1283 5.96      
4 A1 1202 1095 8.69      
5 A1 793 722 5.86      
6 A2 1260 1147 0.00      
7 A2 545 496 0.00      
8 B1 2128 1938 100.22      
9 B1 847 771 0.99      
10 B2 2876 2619 63.99      
11 B2 1386 1262 288.84      
12 B2 576 524 73.34      

Unscaled Zero Point Vibrational Energy (zpe) 9026.6 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 8219.7 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 HF/aug-cc-pVDZ
ABC
6.50275 0.83533 0.80571

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.736 -0.113
B2 0.000 -0.736 -0.113
H3 0.909 0.000 0.594
H4 -0.909 0.000 0.594
H5 0.000 1.908 -0.029
H6 0.000 -1.908 -0.029

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47131.36701.36701.17562.6452
B21.47131.36701.36702.64521.1756
H31.36701.36701.81892.20402.2040
H41.36701.36701.81892.20402.2040
H51.17562.64522.20402.20403.8164
H62.64521.17562.20402.20403.8164

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 57.443 B1 B2 H4 57.443
B1 B2 H6 175.917 B1 H3 B2 65.114
B1 H4 B2 65.114 B2 B1 H3 57.443
B2 B1 H4 57.443 B2 B1 H5 175.917
H3 B1 H4 83.408 H3 B1 H5 119.995
H3 B2 H4 83.408 H3 B2 H6 119.995
H4 B1 H5 119.995 H4 B2 H6 119.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.501      
2 B -0.501      
3 H 0.246      
4 H 0.246      
5 H 0.255      
6 H 0.255      


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 0.721 0.721
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.398 0.000 0.000
y 0.000 -14.262 0.000
z 0.000 0.000 -16.971
Traceless
 xyz
x 1.218 0.000 0.000
y 0.000 1.423 0.000
z 0.000 0.000 -2.641
Polar
3z2-r2-5.281
x2-y2-0.137
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.294 0.000 0.000
y 0.000 5.935 0.000
z 0.000 0.000 4.648


<r2> (average value of r2) Å2
<r2> 24.685
(<r2>)1/2 4.968