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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-65.441547
Energy at 298.15K-65.445515
HF Energy-65.441547
Nuclear repulsion energy31.733817
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 HF/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 A' 3232 2904 25.11      
2 A' 3148 2829 8.97      
3 A' 2702 2428 125.39      
4 A' 1622 1458 1.71      
5 A' 1487 1336 48.31      
6 A' 1355 1218 53.60      
7 A' 1169 1050 97.04      
8 A' 994 893 11.13      
9 A' 657 590 1.56      
10 A" 3272 2940 32.21      
11 A" 2764 2483 204.68      
12 A" 1591 1430 3.19      
13 A" 1153 1036 23.81      
14 A" 729 655 2.20      
15 A" 113 102 0.75      

Unscaled Zero Point Vibrational Energy (zpe) 12994.0 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 11675.1 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 HF/6-31G*
ABC
3.24195 0.70551 0.64682

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 -0.691 0.000
B2 -0.013 0.883 0.000
H3 1.037 -1.000 0.000
H4 -0.461 -1.131 0.885
H5 -0.461 -1.131 -0.885
H6 0.013 1.498 -1.022
H7 0.013 1.498 1.022

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57421.09441.08551.08552.41622.4162
B21.57422.15592.24512.24511.19291.1929
H31.09442.15591.74521.74522.88692.8869
H41.08552.24511.74521.77093.28232.6749
H51.08552.24511.74521.77092.67493.2823
H62.41621.19292.88693.28232.67492.0432
H72.41621.19292.88692.67493.28232.0432

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.051 C1 B2 H7 121.051
B2 C1 H3 106.389 B2 C1 H4 113.890
B2 C1 H5 113.890 H3 C1 H4 106.379
H3 C1 H5 106.379 H4 C1 H5 109.316
H6 B2 H7 117.838
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.685      
2 B 0.273      
3 H 0.173      
4 H 0.174      
5 H 0.174      
6 H -0.054      
7 H -0.054      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.062 -0.451 0.000 0.455
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.491 -0.140 0.000
y -0.140 -16.554 0.000
z 0.000 0.000 -15.807
Traceless
 xyz
x 2.690 -0.140 0.000
y -0.140 -1.905 0.000
z 0.000 0.000 -0.784
Polar
3z2-r2-1.569
x2-y23.063
xy-0.140
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.611 -0.003 0.000
y -0.003 3.805 0.000
z 0.000 0.000 3.585


<r2> (average value of r2) Å2
<r2> 29.516
(<r2>)1/2 5.433