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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-65.558353
Energy at 298.15K-65.562195
HF Energy-65.558353
Nuclear repulsion energy31.641158
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 wB97X-D/3-21G*
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' 3110 2948 8.90      
2 A' 3008 2851 2.83      
3 A' 2585 2450 92.06      
4 A' 1544 1463 6.29      
5 A' 1401 1328 78.18      
6 A' 1265 1199 36.72      
7 A' 1095 1038 91.24      
8 A' 974 923 14.43      
9 A' 642 608 0.25      
10 A" 3159 2994 11.46      
11 A" 2663 2524 136.75      
12 A" 1511 1432 8.10      
13 A" 1095 1038 27.46      
14 A" 709 672 0.03      
15 A" 67 64 3.29      

Unscaled Zero Point Vibrational Energy (zpe) 12413.7 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 11765.7 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 wB97X-D/3-21G*
ABC
3.18026 0.70847 0.64804

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.689 0.000
B2 -0.014 0.879 0.000
H3 1.049 -0.998 0.000
H4 -0.461 -1.131 0.897
H5 -0.461 -1.131 -0.897
H6 0.012 1.497 -1.030
H7 0.012 1.497 1.030

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56791.10671.09541.09542.41632.4163
B21.56792.15692.24632.24631.20141.2014
H31.10672.15691.76121.76122.89122.8912
H41.09542.24631.76121.79343.29302.6737
H51.09542.24631.76121.79342.67373.2930
H62.41631.20142.89123.29302.67372.0603
H72.41631.20142.89122.67373.29302.0603

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.941 C1 B2 H7 120.941
B2 C1 H3 106.214 B2 C1 H4 113.826
B2 C1 H5 113.826 H3 C1 H4 106.216
H3 C1 H5 106.216 H4 C1 H5 109.891
H6 B2 H7 118.056
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.900      
2 B 0.234      
3 H 0.227      
4 H 0.219      
5 H 0.219      
6 H 0.001      
7 H 0.001      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.149 -0.680 0.000 0.696
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.648 -0.199 0.000
y -0.199 -16.222 0.000
z 0.000 0.000 -15.630
Traceless
 xyz
x 2.278 -0.199 0.000
y -0.199 -1.583 0.000
z 0.000 0.000 -0.695
Polar
3z2-r2-1.390
x2-y22.574
xy-0.199
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.657 -0.035 0.000
y -0.035 3.886 0.000
z 0.000 0.000 3.444


<r2> (average value of r2) Å2
<r2> 29.478
(<r2>)1/2 5.429