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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B3PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/STO-3G
 hartrees
Energy at 0K-65.138045
Energy at 298.15K-65.141933
HF Energy-65.138045
Nuclear repulsion energy31.807477
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 B3PW91/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3442 3046 3.73      
2 A' 3295 2916 10.06      
3 A' 2976 2634 14.17      
4 A' 1683 1490 1.47      
5 A' 1529 1353 42.55      
6 A' 1424 1260 36.68      
7 A' 1190 1053 106.94      
8 A' 1063 941 14.49      
9 A' 710 629 0.39      
10 A" 3505 3102 0.14      
11 A" 3115 2757 16.62      
12 A" 1656 1466 4.05      
13 A" 1192 1055 23.81      
14 A" 778 688 0.05      
15 A" 108 96 2.64      

Unscaled Zero Point Vibrational Energy (zpe) 13833.3 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 12242.5 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 B3PW91/STO-3G
ABC
3.22465 0.71477 0.65562

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 -0.684 0.000
B2 -0.013 0.879 0.000
H3 1.049 -0.996 0.000
H4 -0.466 -1.127 0.896
H5 -0.466 -1.127 -0.896
H6 0.011 1.480 -1.011
H7 0.011 1.480 1.011

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56231.10671.09791.09792.38842.3884
B21.56232.15402.24322.24321.17631.1763
H31.10672.15401.76521.76522.86862.8686
H41.09792.24321.76521.79263.26522.6531
H51.09792.24321.76521.79262.65313.2652
H62.38841.17632.86863.26522.65312.0212
H72.38841.17632.86862.65313.26522.0212

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.758 C1 B2 H7 120.758
B2 C1 H3 106.367 B2 C1 H4 113.824
B2 C1 H5 113.824 H3 C1 H4 106.396
H3 C1 H5 106.396 H4 C1 H5 109.441
H6 B2 H7 118.432
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.341      
2 B 0.181      
3 H 0.092      
4 H 0.081      
5 H 0.081      
6 H -0.047      
7 H -0.047      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.126 -0.543 0.000 0.558
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.370 -0.170 0.000
y -0.170 -14.666 0.000
z 0.000 0.000 -14.208
Traceless
 xyz
x 2.067 -0.170 0.000
y -0.170 -1.377 0.000
z 0.000 0.000 -0.690
Polar
3z2-r2-1.379
x2-y22.296
xy-0.170
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.393 -0.039 0.000
y -0.039 2.025 0.000
z 0.000 0.000 1.690


<r2> (average value of r2) Å2
<r2> 28.351
(<r2>)1/2 5.325