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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B3LYP/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-65.974759
Energy at 298.15K-65.978705
HF Energy-65.974759
Nuclear repulsion energy31.879330
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/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 A' 3058 2956 13.55      
2 A' 2959 2860 5.58      
3 A' 2573 2487 109.43      
4 A' 1478 1429 2.07      
5 A' 1330 1286 65.91      
6 A' 1256 1214 21.07      
7 A' 1091 1054 61.51      
8 A' 971 939 13.35      
9 A' 567 548 0.54      
10 A" 3105 3002 18.04      
11 A" 2638 2550 152.96      
12 A" 1431 1383 4.01      
13 A" 1067 1031 19.05      
14 A" 689 666 1.03      
15 A" 158 153 1.51      

Unscaled Zero Point Vibrational Energy (zpe) 12185.7 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 11778.7 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 B3LYP/cc-pVTZ
ABC
3.22499 0.72144 0.65912

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.681 0.000
B2 -0.018 0.871 0.000
H3 1.052 -0.952 0.000
H4 -0.439 -1.143 0.894
H5 -0.439 -1.143 -0.894
H6 0.013 1.485 -1.023
H7 0.013 1.485 1.023

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55191.10361.09041.09042.39542.3954
B21.55192.11332.24282.24281.19321.1932
H31.10362.11331.74831.74832.83922.8392
H41.09042.24281.74831.78773.28352.6692
H51.09042.24281.74831.78772.66923.2835
H62.39541.19322.83923.28352.66922.0452
H72.39541.19322.83922.66923.28352.0452

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.969 C1 B2 H7 120.969
B2 C1 H3 104.191 B2 C1 H4 115.050
B2 C1 H5 115.050 H3 C1 H4 105.667
H3 C1 H5 105.667 H4 C1 H5 110.124
H6 B2 H7 117.973
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.339      
2 B -0.010      
3 H 0.096      
4 H 0.105      
5 H 0.105      
6 H 0.021      
7 H 0.021      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.093 -0.679 0.000 0.685
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.805 -0.192 0.000
y -0.192 -16.598 0.000
z 0.000 0.000 -15.834
Traceless
 xyz
x 2.411 -0.192 0.000
y -0.192 -1.778 0.000
z 0.000 0.000 -0.633
Polar
3z2-r2-1.265
x2-y22.793
xy-0.192
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.465 -0.031 0.000
y -0.031 4.829 0.000
z 0.000 0.000 4.201


<r2> (average value of r2) Å2
<r2> 29.312
(<r2>)1/2 5.414