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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B1B95/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 B1B95/aug-cc-pVTZ
 hartrees
Energy at 0K-53.249073
Energy at 298.15K-53.254937
HF Energy-53.249073
Nuclear repulsion energy32.251440
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/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 2633 2524 0.00 311.53 0.06 0.12
2 Ag 2199 2108 0.00 85.78 0.05 0.09
3 Ag 1195 1146 0.00 6.48 0.65 0.79
4 Ag 817 783 0.00 18.17 0.14 0.25
5 Au 855 819 0.00 0.00 0.00 0.00
6 B1g 2710 2597 0.00 118.31 0.75 0.86
7 B1g 929 890 0.00 0.52 0.75 0.86
8 B1u 2044 1959 5.34 0.00 0.00 0.00
9 B1u 985 944 22.42 0.00 0.00 0.00
10 B2g 1906 1827 0.00 3.33 0.75 0.86
11 B2g 900 862 0.00 0.00 0.75 0.86
12 B2u 2725 2612 169.63 0.00 0.00 0.00
13 B2u 933 894 0.17 0.00 0.00 0.00
14 B2u 332 318 16.19 0.00 0.00 0.00
15 B3g 1020 977 0.00 5.90 0.75 0.86
16 B3u 2619 2510 146.54 0.00 0.00 0.00
17 B3u 1746 1673 416.30 0.00 0.00 0.00
18 B3u 1186 1137 67.24 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13866.3 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 13290.8 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 B1B95/aug-cc-pVTZ
ABC
2.69748 0.61879 0.56859

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.875 0.000 0.000
B2 -0.875 0.000 0.000
H3 0.000 0.000 0.977
H4 0.000 0.000 -0.977
H5 1.450 1.036 0.000
H6 1.450 -1.036 0.000
H7 -1.450 1.036 0.000
H8 -1.450 -1.036 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.74931.31101.31101.18511.18512.54512.5451
B21.74931.31101.31102.54512.54511.18511.1851
H31.31101.31101.95312.03212.03212.03212.0321
H41.31101.31101.95312.03212.03212.03212.0321
H51.18512.54512.03212.03212.07212.90003.5643
H61.18512.54512.03212.03212.07213.56432.9000
H72.54511.18512.03212.03212.90003.56432.0721
H82.54511.18512.03212.03213.56432.90002.0721

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.700 B1 H4 B2 83.700
H3 B1 H4 96.300 H3 B1 H5 108.900
H3 B1 H6 108.900 H3 B2 H4 96.300
H3 B2 H7 108.900 H3 B2 H8 108.900
H4 B1 H5 108.900 H4 B1 H6 108.900
H4 B2 H7 108.900 H4 B2 H8 108.900
H5 B1 H6 121.910 H7 B2 H8 121.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.269      
2 B -0.269      
3 H 0.286      
4 H 0.286      
5 H -0.008      
6 H -0.008      
7 H -0.008      
8 H -0.008      


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 -18.746 0.000 0.000
y 0.000 -17.817 0.000
z 0.000 0.000 -14.778
Traceless
 xyz
x -2.449 0.000 0.000
y 0.000 -1.055 0.000
z 0.000 0.000 3.504
Polar
3z2-r27.008
x2-y2-0.930
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.930 0.000 0.000
y 0.000 4.841 0.000
z 0.000 0.000 4.157


<r2> (average value of r2) Å2
<r2> 32.950
(<r2>)1/2 5.740