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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: LSDA/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/STO-3G
 hartrees
Energy at 0K-64.741852
Energy at 298.15K-64.745740
HF Energy-64.741852
Nuclear repulsion energy31.948680
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 LSDA/STO-3G
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' 3392 3038 6.34      
2 A' 3243 2904 24.37      
3 A' 2942 2634 9.04      
4 A' 1631 1461 2.36      
5 A' 1473 1319 66.59      
6 A' 1385 1241 16.73      
7 A' 1157 1036 89.41      
8 A' 1070 958 17.30      
9 A' 659 590 3.07      
10 A" 3468 3106 0.59      
11 A" 3082 2760 10.35      
12 A" 1597 1431 7.41      
13 A" 1164 1043 24.00      
14 A" 761 682 0.27      
15 A" 140 125 4.96      

Unscaled Zero Point Vibrational Energy (zpe) 13582.8 cm-1
Scaled (by 0.8955) Zero Point Vibrational Energy (zpe) 12163.4 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 LSDA/STO-3G
ABC
3.21287 0.72833 0.66621

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.016 -0.676 0.000
B2 -0.016 0.868 0.000
H3 1.057 -0.964 0.000
H4 -0.453 -1.130 0.901
H5 -0.453 -1.130 -0.901
H6 0.012 1.469 -1.013
H7 0.012 1.469 1.013

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.54451.11101.09931.09932.37242.3724
B21.54452.12332.23532.23531.17771.1777
H31.11102.12331.76611.76612.83482.8348
H41.09932.23531.76611.80193.26102.6429
H51.09932.23531.76611.80192.64293.2610
H62.37241.17772.83483.26102.64292.0251
H72.37241.17772.83482.64293.26102.0251

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.673 C1 B2 H7 120.673
B2 C1 H3 105.009 B2 C1 H4 114.390
B2 C1 H5 114.390 H3 C1 H4 106.073
H3 C1 H5 106.073 H4 C1 H5 110.071
H6 B2 H7 118.579
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.379      
2 B 0.111      
3 H 0.115      
4 H 0.100      
5 H 0.100      
6 H -0.024      
7 H -0.024      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.189 -0.720 0.000 0.744
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.274 -0.207 0.000
y -0.207 -14.328 0.000
z 0.000 0.000 -13.881
Traceless
 xyz
x 1.830 -0.207 0.000
y -0.207 -1.250 0.000
z 0.000 0.000 -0.580
Polar
3z2-r2-1.160
x2-y22.054
xy-0.207
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.388 -0.055 0.000
y -0.055 2.112 0.000
z 0.000 0.000 1.669


<r2> (average value of r2) Å2
<r2> 27.947
(<r2>)1/2 5.286