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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B3LYP/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 B3LYP/6-31G**
 hartrees
Energy at 0K-65.953123
Energy at 298.15K-65.957049
HF Energy-65.953123
Nuclear repulsion energy31.764112
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 B3LYP/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' 3082 2962 14.55      
2 A' 2984 2867 4.84      
3 A' 2594 2492 104.24      
4 A' 1493 1434 1.27      
5 A' 1347 1294 62.41      
6 A' 1263 1214 22.06      
7 A' 1096 1053 71.93      
8 A' 973 935 12.19      
9 A' 569 547 0.57      
10 A" 3133 3010 19.05      
11 A" 2664 2560 151.37      
12 A" 1449 1392 2.94      
13 A" 1069 1027 19.53      
14 A" 687 660 0.54      
15 A" 152 146 1.96      

Unscaled Zero Point Vibrational Energy (zpe) 12277.8 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 11796.6 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 B3LYP/6-31G**
ABC
3.20441 0.71569 0.65405

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.684 0.000
B2 -0.018 0.874 0.000
H3 1.054 -0.958 0.000
H4 -0.443 -1.145 0.896
H5 -0.443 -1.145 -0.896
H6 0.015 1.491 -1.026
H7 0.015 1.491 1.026

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55831.10611.09411.09412.40492.4049
B21.55832.12302.25022.25021.19731.1973
H31.10612.12301.75451.75452.85162.8516
H41.09412.25021.75451.79273.29462.6789
H51.09412.25021.75451.79272.67893.2946
H62.40491.19732.85163.29462.67892.0515
H72.40491.19732.85162.67893.29462.0515

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.999 C1 B2 H7 120.999
B2 C1 H3 104.366 B2 C1 H4 114.945
B2 C1 H5 114.945 H3 C1 H4 105.765
H3 C1 H5 105.765 H4 C1 H5 110.023
H6 B2 H7 117.906
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.430      
2 B 0.191      
3 H 0.123      
4 H 0.115      
5 H 0.115      
6 H -0.056      
7 H -0.056      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.126 -0.701 0.000 0.712
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.436 -0.189 0.000
y -0.189 -16.031 0.000
z 0.000 0.000 -15.366
Traceless
 xyz
x 2.263 -0.189 0.000
y -0.189 -1.630 0.000
z 0.000 0.000 -0.633
Polar
3z2-r2-1.266
x2-y22.596
xy-0.189
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.782 -0.016 0.000
y -0.016 4.187 0.000
z 0.000 0.000 3.677


<r2> (average value of r2) Å2
<r2> 29.169
(<r2>)1/2 5.401