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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: mPW1PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-65.945336
Energy at 298.15K-65.949280
HF Energy-65.945336
Nuclear repulsion energy31.907008
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 mPW1PW91/cc-pVTZ
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' 3094 2967 11.96      
2 A' 2991 2869 4.09      
3 A' 2574 2469 108.72      
4 A' 1475 1415 2.45      
5 A' 1325 1271 70.65      
6 A' 1248 1197 16.11      
7 A' 1083 1039 60.60      
8 A' 981 941 12.59      
9 A' 554 532 0.63      
10 A" 3145 3017 14.01      
11 A" 2644 2536 148.17      
12 A" 1427 1369 4.26      
13 A" 1063 1019 19.34      
14 A" 683 655 0.71      
15 A" 165 158 1.64      

Unscaled Zero Point Vibrational Energy (zpe) 12226.0 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 11727.2 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 mPW1PW91/cc-pVTZ
ABC
3.22046 0.72412 0.66096

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.680 0.000
B2 -0.019 0.868 0.000
H3 1.052 -0.942 0.000
H4 -0.435 -1.143 0.894
H5 -0.435 -1.143 -0.894
H6 0.014 1.484 -1.025
H7 0.014 1.484 1.025

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.54871.10281.08951.08952.39492.3949
B21.54872.10342.24012.24011.19601.1960
H31.10282.10341.74741.74742.83072.8307
H41.08952.24011.74741.78873.28402.6680
H51.08952.24011.74741.78872.66803.2840
H62.39491.19602.83073.28402.66802.0499
H72.39491.19602.83072.66803.28402.0499

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.973 C1 B2 H7 120.973
B2 C1 H3 103.712 B2 C1 H4 115.115
B2 C1 H5 115.115 H3 C1 H4 105.702
H3 C1 H5 105.702 H4 C1 H5 110.345
H6 B2 H7 117.956
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.287      
2 B -0.022      
3 H 0.089      
4 H 0.096      
5 H 0.096      
6 H 0.014      
7 H 0.014      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.102 -0.704 0.000 0.712
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.658 -0.189 0.000
y -0.189 -16.358 0.000
z 0.000 0.000 -15.591
Traceless
 xyz
x 2.317 -0.189 0.000
y -0.189 -1.734 0.000
z 0.000 0.000 -0.583
Polar
3z2-r2-1.167
x2-y22.700
xy-0.189
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.441 -0.029 0.000
y -0.029 4.790 0.000
z 0.000 0.000 4.166


<r2> (average value of r2) Å2
<r2> 29.137
(<r2>)1/2 5.398