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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B2PLYP/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 B2PLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-53.227447
Energy at 298.15K-53.233375
HF Energy-53.140591
Nuclear repulsion energy32.219810
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 B2PLYP/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 2645 2542 0.00 301.52 0.06 0.12
2 Ag 2197 2112 0.00 84.88 0.05 0.09
3 Ag 1218 1170 0.00 5.75 0.66 0.80
4 Ag 812 781 0.00 18.90 0.14 0.25
5 Au 860 826 0.00 0.00 0.00 0.00
6 B1g 2721 2615 0.00 110.30 0.75 0.86
7 B1g 948 911 0.00 0.49 0.75 0.86
8 B1u 2015 1936 8.94 0.00 0.00 0.00
9 B1u 1001 962 25.03 0.00 0.00 0.00
10 B2g 1891 1817 0.00 4.05 0.75 0.86
11 B2g 901 866 0.00 0.07 0.75 0.86
12 B2u 2736 2629 174.77 0.00 0.00 0.00
13 B2u 973 935 0.64 0.00 0.00 0.00
14 B2u 369 355 16.41 0.00 0.00 0.00
15 B3g 1049 1008 0.00 5.69 0.75 0.86
16 B3u 2630 2528 146.03 0.00 0.07 0.13
17 B3u 1744 1676 480.88 0.00 0.00 0.00
18 B3u 1208 1161 78.30 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13959.1 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 13414.7 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 B2PLYP/aug-cc-pVTZ
ABC
2.70696 0.61495 0.56516

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/aug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.879 0.000 0.000
B2 -0.879 0.000 0.000
H3 0.000 0.000 0.972
H4 0.000 0.000 -0.972
H5 1.453 1.035 0.000
H6 1.453 -1.035 0.000
H7 -1.453 1.035 0.000
H8 -1.453 -1.035 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75731.31061.31061.18391.18392.55102.5510
B21.75731.31061.31062.55102.55101.18391.1839
H31.31061.31061.94492.03182.03182.03182.0318
H41.31061.31061.94492.03182.03182.03182.0318
H51.18392.55102.03182.03182.07072.90563.5680
H61.18392.55102.03182.03182.07073.56802.9056
H72.55101.18392.03182.03182.90563.56802.0707
H82.55101.18392.03182.03183.56802.90562.0707

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.197 B1 H4 B2 84.197
H3 B1 H4 95.803 H3 B1 H5 108.974
H3 B1 H6 108.974 H3 B2 H4 95.803
H3 B2 H7 108.974 H3 B2 H8 108.974
H4 B1 H5 108.974 H4 B1 H6 108.974
H4 B2 H7 108.974 H4 B2 H8 108.974
H5 B1 H6 121.978 H7 B2 H8 121.978
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.239      
2 B 0.239      
3 H -0.005      
4 H -0.005      
5 H -0.117      
6 H -0.117      
7 H -0.117      
8 H -0.117      


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 -18.944 0.000 0.000
y 0.000 -18.049 0.000
z 0.000 0.000 -14.932
Traceless
 xyz
x -2.454 0.000 0.000
y 0.000 -1.111 0.000
z 0.000 0.000 3.565
Polar
3z2-r27.130
x2-y2-0.895
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.860 0.000 0.000
y 0.000 4.778 0.000
z 0.000 0.000 4.150


<r2> (average value of r2) Å2
<r2> 33.152
(<r2>)1/2 5.758