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

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-52.026096
Energy at 298.15K-52.029001
HF Energy-52.026096
Nuclear repulsion energy24.790401
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 B3PW91/6-311G**
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 2720 0.03      
2 A1 2092 2014 19.23      
3 A1 1360 1310 2.92      
4 A1 1117 1076 3.15      
5 A1 730 703 4.21      
6 A2 1260 1213 0.00      
7 A2 663 639 0.00      
8 B1 2099 2022 48.24      
9 B1 793 764 1.43      
10 B2 2784 2681 32.71      
11 B2 1332 1282 186.22      
12 B2 556 536 38.03      

Unscaled Zero Point Vibrational Energy (zpe) 8804.7 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 8479.8 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 B3PW91/6-311G**
ABC
6.64177 0.84545 0.81543

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.731 -0.116
B2 0.000 -0.731 -0.116
H3 0.901 0.000 0.580
H4 -0.901 0.000 0.580
H5 0.000 1.899 0.002
H6 0.000 -1.899 0.002

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46201.35311.35311.17432.6330
B21.46201.35311.35312.63301.1743
H31.35311.35311.80192.18012.1801
H41.35311.35311.80192.18012.1801
H51.17432.63302.18012.18013.7987
H62.63301.17432.18012.18013.7987

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 57.300 B1 B2 H4 57.300
B1 B2 H6 174.205 B1 H3 B2 65.400
B1 H4 B2 65.400 B2 B1 H3 57.300
B2 B1 H4 57.300 B2 B1 H5 174.205
H3 B1 H4 83.494 H3 B1 H5 119.047
H3 B2 H4 83.494 H3 B2 H6 119.047
H4 B1 H5 119.047 H4 B2 H6 119.047
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.130      
2 B -0.130      
3 H 0.121      
4 H 0.121      
5 H 0.009      
6 H 0.009      


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 1.014 1.014
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.963 0.000 0.000
y 0.000 -14.026 0.000
z 0.000 0.000 -16.544
Traceless
 xyz
x 1.322 0.000 0.000
y 0.000 1.228 0.000
z 0.000 0.000 -2.550
Polar
3z2-r2-5.100
x2-y20.062
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.827 0.000 0.000
y 0.000 5.990 0.000
z 0.000 0.000 3.540


<r2> (average value of r2) Å2
<r2> 24.262
(<r2>)1/2 4.926