return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B2PLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-311G**
 hartrees
Energy at 0K-65.870817
Energy at 298.15K-65.874776
HF Energy-65.789084
Nuclear repulsion energy31.827745
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 B2PLYP/6-311G**
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' 3094 3094 15.25      
2 A' 2993 2993 4.52      
3 A' 2588 2588 111.82      
4 A' 1495 1495 3.10      
5 A' 1344 1344 71.16      
6 A' 1266 1266 23.30      
7 A' 1100 1100 68.60      
8 A' 977 977 12.20      
9 A' 568 568 0.71      
10 A" 3144 3144 18.70      
11 A" 2657 2657 159.89      
12 A" 1449 1449 4.49      
13 A" 1077 1077 19.68      
14 A" 693 693 1.19      
15 A" 163 163 1.57      

Unscaled Zero Point Vibrational Energy (zpe) 12303.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12303.6 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 B2PLYP/6-311G**
ABC
3.21369 0.71850 0.65661

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.684 0.000
B2 -0.018 0.873 0.000
H3 1.054 -0.950 0.000
H4 -0.441 -1.143 0.895
H5 -0.441 -1.143 -0.895
H6 0.014 1.486 -1.024
H7 0.014 1.486 1.024

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55671.10431.09141.09142.39942.3994
B21.55672.11462.24562.24561.19371.1937
H31.10432.11461.75301.75302.83962.8396
H41.09142.24561.75301.79083.28632.6708
H51.09142.24561.75301.79082.67083.2863
H62.39941.19372.83963.28632.67082.0474
H72.39941.19372.83962.67083.28632.0474

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.907 C1 B2 H7 120.907
B2 C1 H3 103.952 B2 C1 H4 114.861
B2 C1 H5 114.861 H3 C1 H4 105.945
H3 C1 H5 105.945 H4 C1 H5 110.253
H6 B2 H7 118.093
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.430      
2 B 0.143      
3 H 0.115      
4 H 0.116      
5 H 0.116      
6 H -0.030      
7 H -0.030      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.100 -0.604 0.000 0.612
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.813 -0.186 0.000
y -0.186 -16.656 0.000
z 0.000 0.000 -15.852
Traceless
 xyz
x 2.441 -0.186 0.000
y -0.186 -1.823 0.000
z 0.000 0.000 -0.618
Polar
3z2-r2-1.235
x2-y22.843
xy-0.186
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.031 -0.027 0.000
y -0.027 4.537 0.000
z 0.000 0.000 4.049


<r2> (average value of r2) Å2
<r2> 29.391
(<r2>)1/2 5.421