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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-65.939025
Energy at 298.15K-65.942973
HF Energy-65.939025
Nuclear repulsion energy31.865363
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 mPW1PW91/6-311G**
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' 3096 2962 14.09      
2 A' 2995 2865 3.62      
3 A' 2568 2457 112.68      
4 A' 1479 1415 3.78      
5 A' 1330 1272 76.35      
6 A' 1245 1191 18.44      
7 A' 1083 1036 66.67      
8 A' 981 939 12.17      
9 A' 557 533 0.78      
10 A" 3149 3013 15.88      
11 A" 2640 2526 154.84      
12 A" 1431 1369 5.23      
13 A" 1062 1016 20.31      
14 A" 685 656 0.69      
15 A" 167 160 2.08      

Unscaled Zero Point Vibrational Energy (zpe) 12233.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 11704.1 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 mPW1PW91/6-311G**
ABC
3.21059 0.72245 0.65943

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.681 0.000
B2 -0.019 0.869 0.000
H3 1.054 -0.943 0.000
H4 -0.436 -1.144 0.896
H5 -0.436 -1.144 -0.896
H6 0.015 1.485 -1.026
H7 0.015 1.485 1.026

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55051.10451.09141.09142.39732.3973
B21.55052.10592.24312.24311.19731.1973
H31.10452.10591.75051.75052.83332.8333
H41.09142.24311.75051.79173.28812.6710
H51.09142.24311.75051.79172.67103.2881
H62.39731.19732.83333.28812.67102.0524
H72.39731.19732.83332.67103.28812.0524

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.953 C1 B2 H7 120.953
B2 C1 H3 103.695 B2 C1 H4 115.109
B2 C1 H5 115.109 H3 C1 H4 105.723
H3 C1 H5 105.723 H4 C1 H5 110.336
H6 B2 H7 117.991
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.481      
2 B 0.115      
3 H 0.130      
4 H 0.132      
5 H 0.132      
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
  0.118 -0.674 0.000 0.684
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.670 -0.193 0.000
y -0.193 -16.369 0.000
z 0.000 0.000 -15.586
Traceless
 xyz
x 2.307 -0.193 0.000
y -0.193 -1.741 0.000
z 0.000 0.000 -0.566
Polar
3z2-r2-1.131
x2-y22.699
xy-0.193
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.046 -0.025 0.000
y -0.025 4.594 0.000
z 0.000 0.000 4.067


<r2> (average value of r2) Å2
<r2> 29.188
(<r2>)1/2 5.403