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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B2PLYP/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-53.206722
Energy at 298.15K-53.212639
HF Energy-53.127285
Nuclear repulsion energy32.142562
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/6-31G(2df,p)
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 2668 2548 0.00 198.87 0.12 0.21
2 Ag 2207 2108 0.00 66.02 0.09 0.17
3 Ag 1222 1167 0.00 12.22 0.73 0.84
4 Ag 815 778 0.00 16.95 0.21 0.34
5 Au 859 820 0.00 0.00 0.00 0.00
6 B1g 2749 2625 0.00 95.25 0.75 0.86
7 B1g 949 906 0.00 2.01 0.75 0.86
8 B1u 2024 1933 14.04 0.00 0.00 0.00
9 B1u 1010 964 26.68 0.00 0.00 0.00
10 B2g 1890 1805 0.00 4.64 0.75 0.86
11 B2g 902 862 0.00 0.90 0.75 0.86
12 B2u 2762 2638 146.27 0.00 0.00 0.00
13 B2u 976 932 0.24 0.00 0.00 0.00
14 B2u 364 348 17.20 0.00 0.00 0.00
15 B3g 1055 1007 0.00 19.96 0.75 0.86
16 B3u 2655 2535 140.78 0.00 0.00 0.00
17 B3u 1750 1671 466.48 0.00 0.00 0.00
18 B3u 1214 1159 76.51 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14034.9 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 13403.3 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/6-31G(2df,p)
ABC
2.69770 0.61133 0.56194

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

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 0.974
H4 0.000 0.000 -0.974
H5 1.456 1.037 0.000
H6 1.456 -1.037 0.000
H7 -1.456 1.037 0.000
H8 -1.456 -1.037 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76311.31371.31371.18591.18592.55772.5577
B21.76311.31371.31372.55772.55771.18591.1859
H31.31371.31371.94812.03612.03612.03612.0361
H41.31371.31371.94812.03612.03612.03612.0361
H51.18592.55772.03612.03612.07432.91303.5761
H61.18592.55772.03612.03612.07433.57612.9130
H72.55771.18592.03612.03612.91303.57612.0743
H82.55771.18592.03612.03613.57612.91302.0743

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.291 B1 H4 B2 84.291
H3 B1 H4 95.709 H3 B1 H5 108.986
H3 B1 H6 108.986 H3 B2 H4 95.709
H3 B2 H7 108.986 H3 B2 H8 108.986
H4 B1 H5 108.986 H4 B1 H6 108.986
H4 B2 H7 108.986 H4 B2 H8 108.986
H5 B1 H6 121.996 H7 B2 H8 121.996
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.114      
2 B -0.114      
3 H 0.135      
4 H 0.135      
5 H -0.011      
6 H -0.011      
7 H -0.011      
8 H -0.011      


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 -18.599 0.000 0.000
y 0.000 -17.522 0.000
z 0.000 0.000 -14.528
Traceless
 xyz
x -2.575 0.000 0.000
y 0.000 -0.958 0.000
z 0.000 0.000 3.533
Polar
3z2-r27.066
x2-y2-1.078
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.316 0.000 0.000
y 0.000 4.059 0.000
z 0.000 0.000 3.319


<r2> (average value of r2) Å2
<r2> 33.002
(<r2>)1/2 5.745