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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G**
 hartrees
Energy at 0K-65.841935
Energy at 298.15K-65.845854
HF Energy-65.841935
Nuclear repulsion energy31.757489
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 PBE1PBE/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' 3119 2972 11.91      
2 A' 3017 2875 3.23      
3 A' 2604 2482 105.61      
4 A' 1504 1433 2.85      
5 A' 1358 1295 70.84      
6 A' 1255 1196 22.58      
7 A' 1087 1036 73.39      
8 A' 982 936 11.04      
9 A' 563 536 0.76      
10 A" 3170 3021 13.91      
11 A" 2678 2552 151.99      
12 A" 1465 1396 4.80      
13 A" 1068 1018 21.37      
14 A" 682 650 0.33      
15 A" 151 144 2.26      

Unscaled Zero Point Vibrational Energy (zpe) 12350.1 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 11770.9 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 PBE1PBE/6-31G**
ABC
3.19363 0.71672 0.65451

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/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 0.873 0.000
H3 1.054 -0.957 0.000
H4 -0.443 -1.145 0.897
H5 -0.443 -1.145 -0.897
H6 0.015 1.492 -1.029
H7 0.015 1.492 1.029

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55651.10621.09461.09462.40672.4067
B21.55652.12062.24862.24861.20141.2014
H31.10622.12061.75531.75532.85192.8519
H41.09462.24861.75531.79413.29732.6793
H51.09462.24861.75531.79412.67933.2973
H62.40671.20142.85193.29732.67932.0584
H72.40671.20142.85192.67933.29732.0584

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.005 C1 B2 H7 121.005
B2 C1 H3 104.303 B2 C1 H4 114.918
B2 C1 H5 114.918 H3 C1 H4 105.800
H3 C1 H5 105.800 H4 C1 H5 110.076
H6 B2 H7 117.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.671      
2 B 0.124      
3 H 0.192      
4 H 0.188      
5 H 0.188      
6 H -0.011      
7 H -0.011      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.138 -0.709 0.000 0.723
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.431 -0.183 0.000
y -0.183 -16.002 0.000
z 0.000 0.000 -15.298
Traceless
 xyz
x 2.220 -0.183 0.000
y -0.183 -1.638 0.000
z 0.000 0.000 -0.582
Polar
3z2-r2-1.164
x2-y22.572
xy-0.183
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.729 -0.015 0.000
y -0.015 4.148 0.000
z 0.000 0.000 3.663


<r2> (average value of r2) Å2
<r2> 29.149
(<r2>)1/2 5.399