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All results from a given calculation for NH2BHNH2 (diaminoborane)

using model chemistry: B2PLYP=FULLultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/6-31G*
 hartrees
Energy at 0K-137.278108
Energy at 298.15K 
HF Energy-137.141628
Nuclear repulsion energy68.573107
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=FULLultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3738 3546 14.77 74.03 0.66 0.79
2 A1 3634 3447 3.52 198.75 0.14 0.24
3 A1 2662 2526 155.92 69.71 0.24 0.38
4 A1 1683 1597 28.24 4.37 0.65 0.79
5 A1 1207 1145 41.93 8.15 0.12 0.22
6 A1 933 885 5.01 6.66 0.27 0.42
7 A1 394 374 1.32 1.13 0.66 0.79
8 A2 466 442 0.00 0.70 0.75 0.86
9 A2 260 246 0.00 0.52 0.75 0.86
10 B1 941 893 17.19 0.91 0.75 0.86
11 B1 614 583 3.87 1.90 0.75 0.86
12 B1 338 321 507.74 0.01 0.75 0.86
13 B2 3739 3547 23.80 47.82 0.75 0.86
14 B2 3633 3446 38.98 2.37 0.75 0.86
15 B2 1684 1597 242.33 6.90 0.75 0.86
16 B2 1450 1375 199.53 0.57 0.75 0.86
17 B2 1112 1055 0.93 4.65 0.75 0.86
18 B2 819 777 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14652.4 cm-1
Scaled (by 0.9487) Zero Point Vibrational Energy (zpe) 13900.7 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=FULLultrafine/6-31G*
ABC
1.76899 0.30084 0.25712

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.500
H2 0.000 0.000 1.697
N3 0.000 1.244 -0.177
N4 0.000 -1.244 -0.177
H5 0.000 2.119 0.319
H6 0.000 1.348 -1.180
H7 0.000 -2.119 0.319
H8 0.000 -1.348 -1.180

Atom - Atom Distances (Å)
  B1 H2 N3 N4 H5 H6 H7 H8
B11.19741.41561.41562.12692.15392.12692.1539
H21.19742.24892.24892.52783.17732.52783.1773
N31.41562.24892.48731.00621.00873.39922.7795
N41.41562.24892.48733.39922.77951.00621.0087
H52.12692.52781.00623.39921.68564.23843.7779
H62.15393.17731.00872.77951.68563.77792.6970
H72.12692.52783.39921.00624.23843.77791.6856
H82.15393.17732.77951.00873.77792.69701.6856

picture of diaminoborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 N3 H5 121.942 B1 N3 H6 124.500
B1 N4 H7 121.942 B1 N4 H8 124.500
H2 B1 N3 118.535 H2 B1 N4 118.535
N3 B1 N4 122.929 H5 N3 H6 113.558
H7 N4 H8 113.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.347      
2 H -0.073      
3 N -0.780      
4 N -0.780      
5 H 0.329      
6 H 0.313      
7 H 0.329      
8 H 0.313      


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 -1.467 1.467
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.699 0.000 0.000
y 0.000 -12.910 0.000
z 0.000 0.000 -17.278
Traceless
 xyz
x -6.605 0.000 0.000
y 0.000 6.578 0.000
z 0.000 0.000 0.026
Polar
3z2-r20.053
x2-y2-8.789
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.030 0.000 0.000
y 0.000 4.940 0.000
z 0.000 0.000 4.029


<r2> (average value of r2) Å2
<r2> 52.629
(<r2>)1/2 7.255