return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B1B95/TZVP

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/TZVP
 hartrees
Energy at 0K-52.008419
Energy at 298.15K-52.011358
HF Energy-52.008419
Nuclear repulsion energy24.877084
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/TZVP
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 2843 2720 0.02      
2 A1 2144 2051 21.13      
3 A1 1364 1305 2.00      
4 A1 1117 1069 0.14      
5 A1 731 699 3.71      
6 A2 1335 1277 0.00      
7 A2 698 667 0.00      
8 B1 2153 2060 42.43      
9 B1 797 763 2.18      
10 B2 2803 2682 38.10      
11 B2 1386 1327 192.80      
12 B2 568 543 30.60      

Unscaled Zero Point Vibrational Energy (zpe) 8967.9 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 8581.4 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/TZVP
ABC
6.76339 0.84905 0.81844

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.730 -0.116
B2 0.000 -0.730 -0.116
H3 0.896 0.000 0.568
H4 -0.896 0.000 0.568
H5 0.000 1.895 0.012
H6 0.000 -1.895 0.012

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46051.34331.34331.17192.6284
B21.46051.34331.34332.62841.1719
H31.34331.34331.79162.16862.1686
H41.34331.34331.79162.16862.1686
H51.17192.62842.16862.16863.7901
H62.62841.17192.16862.16863.7901

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 57.070 B1 B2 H4 57.070
B1 B2 H6 173.698 B1 H3 B2 65.859
B1 H4 B2 65.859 B2 B1 H3 57.070
B2 B1 H4 57.070 B2 B1 H5 173.698
H3 B1 H4 83.652 H3 B1 H5 118.972
H3 B2 H4 83.652 H3 B2 H6 118.972
H4 B1 H5 118.972 H4 B2 H6 118.972
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.105      
2 B -0.105      
3 H 0.091      
4 H 0.091      
5 H 0.014      
6 H 0.014      


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 0.998 0.998
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.868 0.000 0.000
y 0.000 -14.209 0.000
z 0.000 0.000 -16.556
Traceless
 xyz
x 1.514 0.000 0.000
y 0.000 1.003 0.000
z 0.000 0.000 -2.517
Polar
3z2-r2-5.034
x2-y20.340
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.622 0.000 0.000
y 0.000 6.071 0.000
z 0.000 0.000 3.895


<r2> (average value of r2) Å2
<r2> 24.194
(<r2>)1/2 4.919