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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B2PLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/3-21G*
 hartrees
Energy at 0K-65.455784
Energy at 298.15K-65.459696
HF Energy-65.407871
Nuclear repulsion energy31.635294
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/3-21G*
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' 3096 3096 11.18      
2 A' 3000 3000 4.03      
3 A' 2627 2627 88.60      
4 A' 1559 1559 3.86      
5 A' 1414 1414 58.46      
6 A' 1283 1283 43.26      
7 A' 1120 1120 86.87      
8 A' 974 974 13.99      
9 A' 649 649 0.10      
10 A" 3142 3142 15.72      
11 A" 2701 2701 136.35      
12 A" 1528 1528 5.39      
13 A" 1107 1107 24.83      
14 A" 713 713 0.22      
15 A" 99 99 2.55      

Unscaled Zero Point Vibrational Energy (zpe) 12506.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12506.1 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 B2PLYP/3-21G*
ABC
3.19395 0.70594 0.64651

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.690 0.000
B2 -0.014 0.881 0.000
H3 1.048 -1.001 0.000
H4 -0.462 -1.132 0.895
H5 -0.462 -1.132 -0.895
H6 0.013 1.499 -1.026
H7 0.013 1.499 1.026

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57141.10621.09441.09442.41772.4177
B21.57142.16132.24822.24821.19781.1978
H31.10622.16131.76051.76052.89412.8941
H41.09442.24821.76051.79023.29182.6763
H51.09442.24821.76051.79022.67633.2918
H62.41771.19782.89413.29182.67632.0519
H72.41771.19782.89412.67633.29182.0519

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.041 C1 B2 H7 121.041
B2 C1 H3 106.344 B2 C1 H4 113.797
B2 C1 H5 113.797 H3 C1 H4 106.261
H3 C1 H5 106.261 H4 C1 H5 109.752
H6 B2 H7 117.856
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.829      
2 B 0.265      
3 H 0.205      
4 H 0.195      
5 H 0.195      
6 H -0.016      
7 H -0.016      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.132 -0.645 0.000 0.659
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.744 -0.194 0.000
y -0.194 -16.447 0.000
z 0.000 0.000 -15.854
Traceless
 xyz
x 2.407 -0.194 0.000
y -0.194 -1.648 0.000
z 0.000 0.000 -0.759
Polar
3z2-r2-1.517
x2-y22.704
xy-0.194
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.594 -0.036 0.000
y -0.036 3.840 0.000
z 0.000 0.000 3.394


<r2> (average value of r2) Å2
<r2> 29.620
(<r2>)1/2 5.442