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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-11.416203
Energy at 298.15K-11.420120
HF Energy-11.416203
Nuclear repulsion energy18.551396
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/CEP-121G
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' 3030 2953 31.06      
2 A' 2936 2861 6.47      
3 A' 2520 2456 132.79      
4 A' 1502 1463 7.67      
5 A' 1371 1336 75.50      
6 A' 1222 1191 37.15      
7 A' 1093 1065 60.63      
8 A' 959 935 11.00      
9 A' 625 609 0.22      
10 A" 3083 3004 39.59      
11 A" 2600 2534 206.61      
12 A" 1474 1436 8.79      
13 A" 1070 1043 25.42      
14 A" 689 672 0.68      
15 A" 117 114 2.34      

Unscaled Zero Point Vibrational Energy (zpe) 12146.2 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 11836.5 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/CEP-121G
ABC
3.16989 0.70358 0.64375

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.690 0.000
B2 -0.014 0.882 0.000
H3 1.052 -1.001 0.000
H4 -0.461 -1.137 0.898
H5 -0.461 -1.137 -0.898
H6 0.011 1.505 -1.032
H7 0.011 1.505 1.032

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57201.10981.09791.09792.42642.4264
B21.57202.16342.25422.25421.20631.2063
H31.10982.16341.76381.76382.90392.9039
H41.09792.25421.76381.79573.30612.6876
H51.09792.25421.76381.79572.68763.3061
H62.42641.20632.90393.30612.68762.0644
H72.42641.20632.90392.68763.30612.0644

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.137 C1 B2 H7 121.137
B2 C1 H3 106.268 B2 C1 H4 114.013
B2 C1 H5 114.013 H3 C1 H4 106.061
H3 C1 H5 106.061 H4 C1 H5 109.728
H6 B2 H7 117.673
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.516      
2 B 0.070      
3 H 0.157      
4 H 0.155      
5 H 0.155      
6 H -0.011      
7 H -0.011      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.137 -0.666 0.000 0.680
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.717 -0.164 0.000
y -0.164 -16.505 0.000
z 0.000 0.000 -15.717
Traceless
 xyz
x 2.395 -0.164 0.000
y -0.164 -1.788 0.000
z 0.000 0.000 -0.607
Polar
3z2-r2-1.214
x2-y22.788
xy-0.164
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.927 -0.022 0.000
y -0.022 4.400 0.000
z 0.000 0.000 3.939


<r2> (average value of r2) Å2
<r2> 27.199
(<r2>)1/2 5.215