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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B3LYP/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 B3LYP/6-311G**
 hartrees
Energy at 0K-65.967897
Energy at 298.15K-65.971842
HF Energy-65.967897
Nuclear repulsion energy31.827293
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 B3LYP/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' 3058 2956 15.79      
2 A' 2960 2861 5.60      
3 A' 2563 2478 112.71      
4 A' 1480 1431 3.11      
5 A' 1332 1288 69.67      
6 A' 1250 1208 23.36      
7 A' 1089 1053 66.34      
8 A' 971 938 12.66      
9 A' 569 550 0.61      
10 A" 3106 3003 20.25      
11 A" 2630 2542 158.15      
12 A" 1433 1386 4.74      
13 A" 1065 1030 19.63      
14 A" 689 666 0.97      
15 A" 159 154 1.88      

Unscaled Zero Point Vibrational Energy (zpe) 12176.6 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 11772.4 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 B3LYP/6-311G**
ABC
3.21212 0.71943 0.65725

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.682 0.000
B2 -0.018 0.872 0.000
H3 1.054 -0.953 0.000
H4 -0.440 -1.144 0.896
H5 -0.440 -1.144 -0.896
H6 0.014 1.486 -1.024
H7 0.014 1.486 1.024

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55411.10591.09281.09282.39842.3984
B21.55412.11642.24652.24651.19471.1947
H31.10592.11641.75241.75242.84262.8426
H41.09282.24651.75241.79203.28852.6728
H51.09282.24651.75241.79202.67283.2885
H62.39841.19472.84263.28852.67282.0484
H72.39841.19472.84262.67283.28852.0484

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.946 C1 B2 H7 120.946
B2 C1 H3 104.162 B2 C1 H4 115.034
B2 C1 H5 115.034 H3 C1 H4 105.687
H3 C1 H5 105.687 H4 C1 H5 110.148
H6 B2 H7 118.015
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.424      
2 B 0.133      
3 H 0.116      
4 H 0.117      
5 H 0.117      
6 H -0.029      
7 H -0.029      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.109 -0.655 0.000 0.664
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.808 -0.197 0.000
y -0.197 -16.591 0.000
z 0.000 0.000 -15.815
Traceless
 xyz
x 2.394 -0.197 0.000
y -0.197 -1.779 0.000
z 0.000 0.000 -0.615
Polar
3z2-r2-1.230
x2-y22.783
xy-0.197
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.077 -0.029 0.000
y -0.029 4.646 0.000
z 0.000 0.000 4.108


<r2> (average value of r2) Å2
<r2> 29.366
(<r2>)1/2 5.419