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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: M06-2X/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-31G*
 hartrees
Energy at 0K-65.895477
Energy at 298.15K-65.899296
HF Energy-65.895477
Nuclear repulsion energy31.772371
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 M06-2X/6-31G*
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' 3124 2958 10.99      
2 A' 3033 2872 2.94      
3 A' 2663 2522 99.06      
4 A' 1510 1430 2.62      
5 A' 1370 1297 68.79      
6 A' 1271 1204 25.06      
7 A' 1098 1040 75.20      
8 A' 982 930 11.41      
9 A' 577 546 0.54      
10 A" 3173 3005 12.58      
11 A" 2735 2590 148.14      
12 A" 1476 1398 4.11      
13 A" 1071 1014 20.52      
14 A" 680 644 0.78      
15 A" 89 85 1.70      

Unscaled Zero Point Vibrational Energy (zpe) 12425.8 cm-1
Scaled (by 0.947) Zero Point Vibrational Energy (zpe) 11767.2 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 M06-2X/6-31G*
ABC
3.20706 0.71514 0.65379

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.685 0.000
B2 -0.017 0.875 0.000
H3 1.052 -0.963 0.000
H4 -0.447 -1.141 0.895
H5 -0.447 -1.141 -0.895
H6 0.014 1.489 -1.025
H7 0.014 1.489 1.025

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56041.10431.09291.09292.40372.4037
B21.56042.12682.24792.24791.19511.1951
H31.10432.12681.75451.75452.85332.8533
H41.09292.24791.75451.79083.28912.6734
H51.09292.24791.75451.79082.67343.2891
H62.40371.19512.85333.28912.67342.0502
H72.40371.19512.85332.67343.28912.0502

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.890 C1 B2 H7 120.890
B2 C1 H3 104.605 B2 C1 H4 114.671
B2 C1 H5 114.671 H3 C1 H4 105.975
H3 C1 H5 105.975 H4 C1 H5 110.021
H6 B2 H7 118.132
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.634      
2 B 0.143      
3 H 0.177      
4 H 0.174      
5 H 0.174      
6 H -0.018      
7 H -0.018      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.121 -0.604 0.000 0.615
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.473 -0.171 0.000
y -0.171 -16.090 0.000
z 0.000 0.000 -15.417
Traceless
 xyz
x 2.280 -0.171 0.000
y -0.171 -1.644 0.000
z 0.000 0.000 -0.636
Polar
3z2-r2-1.272
x2-y22.617
xy-0.171
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.714 -0.016 0.000
y -0.016 4.049 0.000
z 0.000 0.000 3.624


<r2> (average value of r2) Å2
<r2> 29.192
(<r2>)1/2 5.403