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All results from a given calculation for B2H6 (Diborane)

using model chemistry: PBEPBE/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at PBEPBE/aug-cc-pVTZ
 hartrees
Energy at 0K-53.187467
Energy at 298.15K-53.193227
HF Energy-53.187467
Nuclear repulsion energy32.024540
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 PBEPBE/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 2559 2542 0.00 327.29 0.06 0.12
2 Ag 2141 2127 0.00 89.09 0.04 0.08
3 Ag 1151 1144 0.00 7.41 0.59 0.74
4 Ag 794 789 0.00 18.34 0.14 0.25
5 Au 828 822 0.00 0.00 0.00 0.00
6 B1g 2634 2617 0.00 127.79 0.75 0.86
7 B1g 906 900 0.00 0.40 0.75 0.86
8 B1u 1994 1982 1.71 0.00 0.00 0.00
9 B1u 951 945 19.16 0.00 0.00 0.00
10 B2g 1843 1831 0.00 3.17 0.75 0.86
11 B2g 876 870 0.00 0.00 0.75 0.86
12 B2u 2650 2633 151.35 0.00 0.00 0.00
13 B2u 871 865 0.00 0.00 0.00 0.00
14 B2u 308 306 17.65 0.00 0.00 0.00
15 B3g 939 933 0.00 5.52 0.75 0.86
16 B3u 2547 2530 134.85 0.00 0.00 0.00
17 B3u 1671 1660 345.05 0.00 0.00 0.00
18 B3u 1146 1138 56.77 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13403.9 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 13316.8 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 PBEPBE/aug-cc-pVTZ
ABC
2.65018 0.61204 0.56223

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.878 0.000 0.000
B2 -0.878 0.000 0.000
H3 0.000 0.000 0.986
H4 0.000 0.000 -0.986
H5 1.460 1.045 0.000
H6 1.460 -1.045 0.000
H7 -1.460 1.045 0.000
H8 -1.460 -1.045 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75651.32061.32061.19611.19612.56152.5615
B21.75651.32061.32062.56152.56151.19611.1961
H31.32061.32061.97242.04872.04872.04872.0487
H41.32061.32061.97242.04872.04872.04872.0487
H51.19612.56152.04872.04872.08962.92093.5914
H61.19612.56152.04872.04872.08963.59142.9209
H72.56151.19612.04872.04872.92093.59142.0896
H82.56151.19612.04872.04873.59142.92092.0896

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.374 B1 H4 B2 83.374
H3 B1 H4 96.626 H3 B1 H5 108.888
H3 B1 H6 108.888 H3 B2 H4 96.626
H3 B2 H7 108.888 H3 B2 H8 108.888
H4 B1 H5 108.888 H4 B1 H6 108.888
H4 B2 H7 108.888 H4 B2 H8 108.888
H5 B1 H6 121.744 H7 B2 H8 121.744
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.127      
2 B -0.127      
3 H 0.160      
4 H 0.160      
5 H -0.016      
6 H -0.016      
7 H -0.016      
8 H -0.016      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.011 0.000 0.000
y 0.000 -18.009 0.000
z 0.000 0.000 -14.930
Traceless
 xyz
x -2.541 0.000 0.000
y 0.000 -1.039 0.000
z 0.000 0.000 3.580
Polar
3z2-r27.160
x2-y2-1.002
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.244 0.000 0.000
y 0.000 5.085 0.000
z 0.000 0.000 4.353


<r2> (average value of r2) Å2
<r2> 33.372
(<r2>)1/2 5.777