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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBEPBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/STO-3G
 hartrees
Energy at 0K-65.036269
Energy at 298.15K-65.040123
HF Energy-65.036269
Nuclear repulsion energy31.683869
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 PBEPBE/STO-3G
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' 3347 3058 3.91      
2 A' 3204 2927 12.66      
3 A' 2907 2656 14.42      
4 A' 1638 1497 1.73      
5 A' 1481 1353 47.34      
6 A' 1389 1269 30.66      
7 A' 1161 1061 96.75      
8 A' 1045 955 14.99      
9 A' 679 620 0.90      
10 A" 3416 3120 0.27      
11 A" 3043 2780 17.25      
12 A" 1608 1470 4.38      
13 A" 1162 1062 22.81      
14 A" 759 694 0.00      
15 A" 113 104 3.28      

Unscaled Zero Point Vibrational Energy (zpe) 13476.2 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 12311.8 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 PBEPBE/STO-3G
ABC
3.18767 0.71177 0.65225

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.684 0.000
B2 -0.014 0.880 0.000
H3 1.058 -0.993 0.000
H4 -0.463 -1.136 0.903
H5 -0.463 -1.136 -0.903
H6 0.011 1.484 -1.016
H7 0.011 1.484 1.016

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56381.11501.10491.10492.39502.3950
B21.56382.15732.25362.25361.18291.1829
H31.11502.15731.77441.77442.87482.8748
H41.10492.25361.77441.80553.28212.6649
H51.10492.25361.77441.80552.66493.2821
H62.39501.18292.87483.28212.66492.0327
H72.39501.18292.87482.66493.28212.0327

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.740 C1 B2 H7 120.740
B2 C1 H3 106.063 B2 C1 H4 114.119
B2 C1 H5 114.119 H3 C1 H4 106.129
H3 C1 H5 106.129 H4 C1 H5 109.581
H6 B2 H7 118.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.337      
2 B 0.160      
3 H 0.096      
4 H 0.083      
5 H 0.083      
6 H -0.043      
7 H -0.043      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.146 -0.629 0.000 0.645
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.372 -0.185 0.000
y -0.185 -14.583 0.000
z 0.000 0.000 -14.146
Traceless
 xyz
x 1.993 -0.185 0.000
y -0.185 -1.325 0.000
z 0.000 0.000 -0.668
Polar
3z2-r2-1.336
x2-y22.212
xy-0.185
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.417 -0.050 0.000
y -0.050 2.128 0.000
z 0.000 0.000 1.706


<r2> (average value of r2) Å2
<r2> 28.452
(<r2>)1/2 5.334