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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-65.854089
Energy at 298.15K-65.858014
HF Energy-65.854089
Nuclear repulsion energy31.796193
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 HSEh1PBE/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' 3117 2975 12.15      
2 A' 3013 2875 3.07      
3 A' 2591 2472 104.94      
4 A' 1486 1418 2.19      
5 A' 1340 1279 71.92      
6 A' 1252 1194 17.48      
7 A' 1086 1037 71.32      
8 A' 982 937 11.27      
9 A' 556 531 0.82      
10 A" 3172 3027 13.76      
11 A" 2665 2543 149.02      
12 A" 1442 1376 3.91      
13 A" 1063 1014 20.52      
14 A" 682 651 0.34      
15 A" 160 152 2.22      

Unscaled Zero Point Vibrational Energy (zpe) 12303.3 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 11741.0 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 HSEh1PBE/6-31G**
ABC
3.19979 0.71875 0.65617

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.683 0.000
B2 -0.019 0.872 0.000
H3 1.054 -0.949 0.000
H4 -0.440 -1.145 0.897
H5 -0.440 -1.145 -0.897
H6 0.015 1.490 -1.028
H7 0.015 1.490 1.028

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55451.10521.09321.09322.40402.4040
B21.55452.11322.24692.24691.20021.2002
H31.10522.11321.75321.75322.84332.8433
H41.09322.24691.75321.79383.29482.6770
H51.09322.24691.75321.79382.67703.2948
H62.40401.20022.84333.29482.67702.0565
H72.40401.20022.84332.67703.29482.0565

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.999 C1 B2 H7 120.999
B2 C1 H3 103.936 B2 C1 H4 115.008
B2 C1 H5 115.008 H3 C1 H4 105.776
H3 C1 H5 105.776 H4 C1 H5 110.250
H6 B2 H7 117.897
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.528      
2 B 0.175      
3 H 0.149      
4 H 0.143      
5 H 0.143      
6 H -0.042      
7 H -0.042      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.137 -0.723 0.000 0.735
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.437 -0.186 0.000
y -0.186 -15.975 0.000
z 0.000 0.000 -15.297
Traceless
 xyz
x 2.198 -0.186 0.000
y -0.186 -1.608 0.000
z 0.000 0.000 -0.591
Polar
3z2-r2-1.181
x2-y22.537
xy-0.186
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.788 -0.013 0.000
y -0.013 4.212 0.000
z 0.000 0.000 3.707


<r2> (average value of r2) Å2
<r2> 29.092
(<r2>)1/2 5.394