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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B3LYP/6-311G*

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/6-311G*
 hartrees
Energy at 0K-65.960774
Energy at 298.15K-65.964698
HF Energy-65.960774
Nuclear repulsion energy31.808069
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/6-311G*
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 2955 18.52      
2 A' 2965 2865 6.38      
3 A' 2557 2470 114.97      
4 A' 1497 1447 4.21      
5 A' 1352 1307 71.24      
6 A' 1248 1206 27.78      
7 A' 1088 1051 69.51      
8 A' 969 936 12.17      
9 A' 574 555 0.39      
10 A" 3105 3001 24.78      
11 A" 2624 2535 163.74      
12 A" 1458 1409 5.80      
13 A" 1070 1033 21.01      
14 A" 690 666 1.03      
15 A" 148 143 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 12200.8 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 11789.7 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/6-311G*
ABC
3.21388 0.71817 0.65615

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.681 0.000
B2 -0.018 0.873 0.000
H3 1.051 -0.964 0.000
H4 -0.442 -1.145 0.895
H5 -0.442 -1.145 -0.895
H6 0.014 1.489 -1.025
H7 0.014 1.489 1.025

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55421.10551.09311.09312.40102.4010
B21.55422.12472.24742.24741.19691.1969
H31.10552.12471.75001.75002.85402.8540
H41.09312.24741.75001.78903.29132.6766
H51.09312.24741.75001.78902.67663.2913
H62.40101.19692.85403.29132.67662.0507
H72.40101.19692.85402.67663.29132.0507

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.012 C1 B2 H7 121.012
B2 C1 H3 104.785 B2 C1 H4 115.084
B2 C1 H5 115.084 H3 C1 H4 105.488
H3 C1 H5 105.488 H4 C1 H5 109.835
H6 B2 H7 117.888
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.797      
2 B 0.062      
3 H 0.215      
4 H 0.216      
5 H 0.216      
6 H 0.044      
7 H 0.044      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.110 -0.654 0.000 0.663
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.848 -0.189 0.000
y -0.189 -16.708 0.000
z 0.000 0.000 -15.840
Traceless
 xyz
x 2.425 -0.189 0.000
y -0.189 -1.864 0.000
z 0.000 0.000 -0.562
Polar
3z2-r2-1.123
x2-y22.859
xy-0.189
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.006 -0.031 0.000
y -0.031 4.569 0.000
z 0.000 0.000 4.056


<r2> (average value of r2) Å2
<r2> 29.443
(<r2>)1/2 5.426