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All results from a given calculation for B2H6 (Diborane)

using model chemistry: mPW1PW91/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at mPW1PW91/daug-cc-pVDZ
 hartrees
Energy at 0K-53.265484
Energy at 298.15K-53.271323
HF Energy-53.265484
Nuclear repulsion energy31.964100
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 mPW1PW91/daug-cc-pVDZ
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 2616 2616 0.00 316.20 0.07 0.12
2 Ag 2177 2177 0.00 90.91 0.04 0.08
3 Ag 1183 1183 0.00 6.53 0.65 0.78
4 Ag 812 812 0.00 19.12 0.15 0.26
5 Au 839 839 0.00 0.00 0.00 0.00
6 B1g 2698 2698 0.00 122.56 0.75 0.86
7 B1g 924 924 0.00 0.49 0.75 0.86
8 B1u 2025 2025 5.68 0.00 0.00 0.00
9 B1u 977 977 20.47 0.00 0.75 0.86
10 B2g 1877 1877 0.00 3.58 0.75 0.86
11 B2g 887 887 0.00 0.01 0.75 0.86
12 B2u 2714 2714 168.30 0.00 0.00 0.00
13 B2u 909 909 0.10 0.00 0.00 0.00
14 B2u 330 330 16.60 0.00 0.00 0.00
15 B3g 994 994 0.00 6.19 0.75 0.86
16 B3u 2600 2600 149.20 0.00 0.00 0.00
17 B3u 1709 1709 431.50 0.00 0.00 0.00
18 B3u 1171 1171 64.76 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13720.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13720.0 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 mPW1PW91/daug-cc-pVDZ
ABC
2.64580 0.60840 0.55889

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/daug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.882 0.000 0.000
B2 -0.882 0.000 0.000
H3 0.000 0.000 0.986
H4 0.000 0.000 -0.986
H5 1.462 1.046 0.000
H6 1.462 -1.046 0.000
H7 -1.462 1.046 0.000
H8 -1.462 -1.046 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76401.32271.32271.19651.19652.56732.5673
B21.76401.32271.32272.56732.56731.19651.1965
H31.32271.32271.97152.05062.05062.05062.0506
H41.32271.32271.97152.05062.05062.05062.0506
H51.19652.56732.05062.05062.09252.92483.5962
H61.19652.56732.05062.05062.09253.59622.9248
H72.56731.19652.05062.05062.92483.59622.0925
H82.56731.19652.05062.05063.59622.92482.0925

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.639 B1 H4 B2 83.639
H3 B1 H4 96.361 H3 B1 H5 108.873
H3 B1 H6 108.873 H3 B2 H4 96.361
H3 B2 H7 108.873 H3 B2 H8 108.873
H4 B1 H5 108.873 H4 B1 H6 108.873
H4 B2 H7 108.873 H4 B2 H8 108.873
H5 B1 H6 121.960 H7 B2 H8 121.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -2.244      
2 B -2.244      
3 H 0.580      
4 H 0.580      
5 H 0.832      
6 H 0.832      
7 H 0.832      
8 H 0.832      


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 -18.847 0.000 0.000
y 0.000 -17.896 0.000
z 0.000 0.000 -14.851
Traceless
 xyz
x -2.474 0.000 0.000
y 0.000 -1.047 0.000
z 0.000 0.000 3.520
Polar
3z2-r27.041
x2-y2-0.951
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.028 0.000 0.000
y 0.000 4.914 0.000
z 0.000 0.000 4.228


<r2> (average value of r2) Å2
<r2> 33.397
(<r2>)1/2 5.779