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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-311G*
 hartrees
Energy at 0K-65.833317
Energy at 298.15K-65.837196
HF Energy-65.833317
Nuclear repulsion energy31.689026
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 PBEPBEultrafine/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' 3005 2974 15.87      
2 A' 2904 2874 4.67      
3 A' 2497 2471 110.70      
4 A' 1447 1432 4.68      
5 A' 1299 1285 79.58      
6 A' 1200 1187 18.84      
7 A' 1048 1037 61.04      
8 A' 961 951 11.50      
9 A' 529 523 0.74      
10 A" 3057 3025 19.37      
11 A" 2568 2542 150.35      
12 A" 1405 1390 6.27      
13 A" 1032 1021 20.29      
14 A" 666 659 0.57      
15 A" 161 160 2.74      

Unscaled Zero Point Vibrational Energy (zpe) 11889.1 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 11765.5 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 PBEPBEultrafine/6-311G*
ABC
3.16668 0.71713 0.65379

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.681 0.000
B2 -0.020 0.872 0.000
H3 1.062 -0.945 0.000
H4 -0.433 -1.157 0.903
H5 -0.433 -1.157 -0.903
H6 0.015 1.493 -1.035
H7 0.015 1.493 1.035

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55321.11421.10041.10042.40832.4083
B21.55322.11542.25842.25841.20751.2075
H31.11422.11541.75921.75922.84862.8486
H41.10042.25841.75921.80513.31292.6906
H51.10042.25841.75921.80512.69063.3129
H62.40831.20752.84863.31292.69062.0697
H72.40831.20752.84862.69063.31292.0697

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.958 C1 B2 H7 120.958
B2 C1 H3 103.718 B2 C1 H4 115.593
B2 C1 H5 115.593 H3 C1 H4 105.187
H3 C1 H5 105.187 H4 C1 H5 110.205
H6 B2 H7 117.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.820      
2 B 0.026      
3 H 0.228      
4 H 0.227      
5 H 0.227      
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
  0.144 -0.771 0.000 0.784
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.925 -0.205 0.000
y -0.205 -16.625 0.000
z 0.000 0.000 -15.762
Traceless
 xyz
x 2.269 -0.205 0.000
y -0.205 -1.782 0.000
z 0.000 0.000 -0.487
Polar
3z2-r2-0.974
x2-y22.701
xy-0.205
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.093 -0.038 0.000
y -0.038 4.820 0.000
z 0.000 0.000 4.172


<r2> (average value of r2) Å2
<r2> 29.536
(<r2>)1/2 5.435