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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: mPW1PW91/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-65.945701
Energy at 298.15K-65.949642
HF Energy-65.945701
Nuclear repulsion energy31.907789
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/aug-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' 3092 2962 11.87      
2 A' 2990 2865 3.83      
3 A' 2573 2465 110.20      
4 A' 1474 1412 2.67      
5 A' 1323 1268 71.60      
6 A' 1247 1195 16.77      
7 A' 1082 1037 58.90      
8 A' 979 938 12.18      
9 A' 553 529 0.56      
10 A" 3143 3012 13.69      
11 A" 2643 2532 150.31      
12 A" 1425 1366 4.67      
13 A" 1061 1017 18.41      
14 A" 682 654 0.89      
15 A" 164 157 1.51      

Unscaled Zero Point Vibrational Energy (zpe) 12216.5 cm-1
Scaled (by 0.9581) Zero Point Vibrational Energy (zpe) 11704.6 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/aug-cc-pVTZ
ABC
3.22027 0.72420 0.66100

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-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
C11.54871.10281.08951.08952.39472.3947
B21.54872.10342.24012.24011.19601.1960
H31.10282.10341.74731.74732.83052.8305
H41.08952.24011.74731.78873.28392.6678
H51.08952.24011.74731.78872.66783.2839
H62.39471.19602.83053.28392.66782.0502
H72.39471.19602.83052.66783.28392.0502

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.959 C1 B2 H7 120.959
B2 C1 H3 103.712 B2 C1 H4 115.123
B2 C1 H5 115.123 H3 C1 H4 105.691
H3 C1 H5 105.691 H4 C1 H5 110.346
H6 B2 H7 117.985
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.622      
2 B -0.149      
3 H 0.244      
4 H 0.224      
5 H 0.224      
6 H 0.040      
7 H 0.040      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.096 -0.685 0.000 0.692
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.682 -0.182 0.000
y -0.182 -16.405 0.000
z 0.000 0.000 -15.611
Traceless
 xyz
x 2.326 -0.182 0.000
y -0.182 -1.758 0.000
z 0.000 0.000 -0.568
Polar
3z2-r2-1.136
x2-y22.723
xy-0.182
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.771 -0.037 0.000
y -0.037 5.037 0.000
z 0.000 0.000 4.364


<r2> (average value of r2) Å2
<r2> 29.154
(<r2>)1/2 5.399