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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HF/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 HF/STO-3G
 hartrees
Energy at 0K-64.667686
Energy at 298.15K-64.671669
HF Energy-64.667686
Nuclear repulsion energy31.975624
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 HF/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' 3709 3028 2.00      
2 A' 3549 2898 2.34      
3 A' 3175 2592 16.04      
4 A' 1837 1500 0.64      
5 A' 1694 1383 22.60      
6 A' 1542 1259 63.09      
7 A' 1285 1049 133.39      
8 A' 1119 914 11.64      
9 A' 809 661 2.48      
10 A" 3754 3065 0.60      
11 A" 3319 2710 19.78      
12 A" 1816 1483 1.75      
13 A" 1293 1055 24.79      
14 A" 838 684 1.28      
15 A" 96 78 1.13      

Unscaled Zero Point Vibrational Energy (zpe) 14916.3 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 12179.2 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 HF/STO-3G
ABC
3.30332 0.71354 0.65645

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 -0.688 0.000
B2 -0.009 0.882 0.000
H3 1.030 -1.010 0.000
H4 -0.474 -1.113 0.882
H5 -0.474 -1.113 -0.882
H6 0.010 1.476 -0.999
H7 0.010 1.476 0.999

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56931.08881.08361.08362.38342.3834
B21.56932.15902.22962.22961.16261.1626
H31.08882.15901.74671.74672.86742.8674
H41.08362.22961.74671.76383.23652.6365
H51.08362.22961.74671.76382.63653.2365
H62.38341.16262.86743.23652.63651.9978
H72.38341.16262.86742.63653.23651.9978

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.756 C1 B2 H7 120.756
B2 C1 H3 107.245 B2 C1 H4 113.102
B2 C1 H5 113.102 H3 C1 H4 107.033
H3 C1 H5 107.033 H4 C1 H5 108.957
H6 B2 H7 118.450
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.303      
2 B 0.259      
3 H 0.067      
4 H 0.060      
5 H 0.060      
6 H -0.072      
7 H -0.072      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.073 -0.310 0.000 0.318
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.454 -0.132 0.000
y -0.132 -15.069 0.000
z 0.000 0.000 -14.552
Traceless
 xyz
x 2.357 -0.132 0.000
y -0.132 -1.566 0.000
z 0.000 0.000 -0.791
Polar
3z2-r2-1.581
x2-y22.615
xy-0.132
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.318 -0.012 0.000
y -0.012 1.802 0.000
z 0.000 0.000 1.664


<r2> (average value of r2) Å2
<r2> 28.403
(<r2>)1/2 5.329