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

using model chemistry: B1B95/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-51.990945
Energy at 298.15K-51.993857
HF Energy-51.990945
Nuclear repulsion energy24.585859
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 B1B95/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2837 2727 0.03      
2 A1 2125 2043 19.41      
3 A1 1363 1310 2.08      
4 A1 1112 1069 2.79      
5 A1 728 700 2.73      
6 A2 1297 1247 0.00      
7 A2 680 654 0.00      
8 B1 2142 2059 48.75      
9 B1 791 761 1.57      
10 B2 2794 2685 35.68      
11 B2 1352 1299 191.27      
12 B2 553 532 32.19      

Unscaled Zero Point Vibrational Energy (zpe) 8887.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 8542.9 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 B1B95/cc-pVDZ
ABC
6.57463 0.82886 0.80093

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.739 -0.119
B2 0.000 -0.739 -0.119
H3 0.901 0.000 0.586
H4 -0.901 0.000 0.586
H5 0.000 1.914 0.011
H6 0.000 -1.914 0.011

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47801.36211.36211.18232.6564
B21.47801.36211.36212.65641.1823
H31.36211.36211.80222.19252.1925
H41.36211.36211.80222.19252.1925
H51.18232.65642.19252.19253.8284
H62.65641.18232.19252.19253.8284

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 57.142 B1 B2 H4 57.142
B1 B2 H6 173.697 B1 H3 B2 65.716
B1 H4 B2 65.716 B2 B1 H3 57.142
B2 B1 H4 57.142 B2 B1 H5 173.697
H3 B1 H4 82.836 H3 B1 H5 118.845
H3 B2 H4 82.836 H3 B2 H6 118.845
H4 B1 H5 118.845 H4 B2 H6 118.845
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.153      
2 B -0.153      
3 H 0.110      
4 H 0.110      
5 H 0.043      
6 H 0.043      


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 0.984 0.984
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.918 0.000 0.000
y 0.000 -13.891 0.000
z 0.000 0.000 -16.401
Traceless
 xyz
x 1.228 0.000 0.000
y 0.000 1.268 0.000
z 0.000 0.000 -2.496
Polar
3z2-r2-4.993
x2-y2-0.027
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.711 0.000 0.000
y 0.000 5.976 0.000
z 0.000 0.000 3.337


<r2> (average value of r2) Å2
<r2> 24.447
(<r2>)1/2 4.944